Banking heir and techno music star Ivan Wilzig nearly died following a bellybutton fix. Wilzig, who records as “Peace man,” told us, “I had a tear in one of my stomach muscles, so my ‘inny’ bellybutton became an ‘outy.’ I had it repaired in February. Four days later, I started feeling ill and I was rushed to intensive care. I had blood clots in my lungs, pneumonia and a rapid heart rate, and for a while I was a borderline case. I very nearly died.” Wilzig — who calls himself “Sir Ivan” and throws lav ish parties at his Water Mill estate, The Castle — said, “My view is, what doesn’t kill you makes you stronger. I spent months recover ing and now I feel better than ever.” He’s planning a party next month at W Wall Street for his album, “I Am Peaceman.” He added, “I now have the greatest appreciation for life; therefore I’ll throw even bigger parties.”