Have you been wanting to keep up with Rob Kardashian?Writingstar Investment Guild

Aside from the occasional Instagram post or rare spotting on The Kardashians, the father of Dream Kardashian lives a pretty private life. Still, fans haven't forgotten that March 17 is Rob's birthday, and it looks like his 36th year is already off to a terrific start.

"He's doing great and focusing on being the best father to Dream," a source exclusively told E! News. "They spend an incredible amount of time together and with the whole family."

While fatherhood is his priority, it's not the only thing on his mind.

"His businesses—Grandeza hot sauce, sock company Arthur George and clothing brand Halfway Dead—are doing awesome," the insider continued, "and he continues to balance fatherhood with pushing those businesses ahead."

Indeed, there's a lot to look forward to this year. Just ask mom Kris Jenner.

"Happy birthday to my amazing wonderful, beautiful son, Rob!" she captioned a montage of throwback videos. "You are one of the most amazing humans I know in life. You are so kind, loving, smart, creative, generous, giving, and one of the nicest and most humble men I have ever known. You are the greatest dad in the world! You are so amazing and fabulous with Dream! You make sure her every need and desire is taken care of constantly and you do it with such joy, passion, consistency, and love."

The momager also expressed her gratitude for all that her son, whose birthday falls on St. Patrick's Day, brings to her life.

"Thank you Rob for all the passion, all the love, all the kindness that you give all of us every single day, I thank God every single day that he chose me to be your Mom," Kris added. "I am the luckiest mother in the world to have you as my son. I feel completely blessed, and I love you more than you will ever know. Mommy xoxo."

Rob truly appreciated the message, commenting, "I Love you mama!"

His sister Kourtney Kardashian also posted a picture of them being "80s icons" from their childhood days.

"Omg we're always together," the Poosh founder wrote on Instagram while re-sharing Kris' video. "[Love] my little leprechaun @robkardashianofficial."

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