31013001332 has 96 divisors (see below), whose sum is σ = 61316640000. Its totient is φ = 13638481920.

The previous prime is 31013001329. The next prime is 31013001343. The reversal of 31013001332 is 23310031013.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 31013001332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49148657 + ... + 49149287.

It is an arithmetic number, because the mean of its divisors is an integer number (638715000).

Almost surely, 2^31013001332 is an apocalyptic number.

It is an amenable number.

31013001332 is a deficient number, since it is larger than the sum of its proper divisors (30303638668).

31013001332 is a wasteful number, since it uses less digits than its factorization.

31013001332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129 (or 1127 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 31013001332 its reverse (23310031013), we get a palindrome (54323032345).

The spelling of 31013001332 in words is "thirty-one billion, thirteen million, one thousand, three hundred thirty-two".