31311020332992 has 28 divisors (see below), whose sum is σ = 82843741298216. Its totient is φ = 10437006777600.

The previous prime is 31311020332931. The next prime is 31311020333023. The reversal of 31311020332992 is 29923302011313.

It is a self number, because there is not a number n which added to its sum of digits gives 31311020332992.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81539115259 + ... + 81539115642.

Almost surely, 2^{31311020332992} is an apocalyptic number.

31311020332992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31311020332992 is an abundant number, since it is smaller than the sum of its proper divisors (51532720965224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31311020332992 is a wasteful number, since it uses less digits than its factorization.

31311020332992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163078230916 (or 163078230906 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 39.

The spelling of 31311020332992 in words is "thirty-one trillion, three hundred eleven billion, twenty million, three hundred thirty-two thousand, nine hundred ninety-two".