Los Angeles - Funny man Robin Williams was said to be recovering well Monday from heart surgery and was even back to joking with his fans.

The three and a half hour operation was performed Friday at the Cleveland Clinic in Ohio and according to statements from his doctor the operation "went extremely well, and we expect him to make a full recovery."

The procedure "was conducted to replace his aortic valve, repair his mitral valve and correct his irregular heartbeat," said surgeon Marc Gillinov. "A couple hours after surgery, he was entertaining the medical team and making us all laugh."

Williams was hospitalized earlier this month after falling ill on a comedy tour called Weapons of Self-Destruction. His spokeswoman, Mara Buxbaum, said he would resume his 80-city itinerary in the autumn, and quoted Williams as saying: "I'm thinking the next leg of the tour will be Weapons of Self-Destruction and Reconstruction."