31312143432988 has 24 divisors (see below), whose sum is σ = 59785327574784. Its totient is φ = 14230983135600.

The previous prime is 31312143432931. The next prime is 31312143433027. The reversal of 31312143432988 is 88923434121313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44883268 + ... + 45575563.

It is an arithmetic number, because the mean of its divisors is an integer number (2491055315616).

Almost surely, 2^{31312143432988} is an apocalyptic number.

It is an amenable number.

31312143432988 is a deficient number, since it is larger than the sum of its proper divisors (28473184141796).

31312143432988 is a wasteful number, since it uses less digits than its factorization.

31312143432988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90466713 (or 90466711 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 52.

The spelling of 31312143432988 in words is "thirty-one trillion, three hundred twelve billion, one hundred forty-three million, four hundred thirty-two thousand, nine hundred eighty-eight".