31831013057004 has 72 divisors (see below), whose sum is σ = 91969013878560. Its totient is φ = 9093313780992.

The previous prime is 31831013056987. The next prime is 31831013057027. The reversal of 31831013057004 is 40075031013813.

31831013057004 is a `hidden beast` number, since 3 + 1 + 83 + 1 + 0 + 1 + 3 + 0 + 570 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 31831013057004.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6938289 + ... + 10573640.

It is an arithmetic number, because the mean of its divisors is an integer number (1277347414980).

Almost surely, 2^{31831013057004} is an apocalyptic number.

It is an amenable number.

31831013057004 is an abundant number, since it is smaller than the sum of its proper divisors (60138000821556).

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

31831013057004 is a wasteful number, since it uses less digits than its factorization.

31831013057004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17519159 (or 17519154 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 31831013057004 in words is "thirty-one trillion, eight hundred thirty-one billion, thirteen million, fifty-seven thousand, four".