The papaya tree never survives wet soil or standing water like in rice fields over extended weeks or even months. A few years back I planted several seeds behind my hut - most of the seeds grew. 9 months later I harvested the first sweet and juicy papaya fruits. Next rainy season a few of the papaya trees were in a wet area with a few times a few weeks standing water ... and all of them fouled and fell.
drought, soil where nothing else might be growing in your opinion - all that never prevents form papaya growing high and strong and bearing delicious tasting fruits in abundance.