31020013032 has 32 divisors (see below), whose sum is σ = 78642290880. Its totient is φ = 10194369920.

The previous prime is 31020013021. The next prime is 31020013069. The reversal of 31020013032 is 23031002013.

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, 9100413 + ... + 9103820.

It is an arithmetic number, because the mean of its divisors is an integer number (2457571590).

Almost surely, 2^31020013032 is an apocalyptic number.

It is an amenable number.

31020013032 is an abundant number, since it is smaller than the sum of its proper divisors (47622277848).

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

31020013032 is a wasteful number, since it uses less digits than its factorization.

31020013032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18204313 (or 18204309 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 31020013032 its reverse (23031002013), we get a palindrome (54051015045).

The spelling of 31020013032 in words is "thirty-one billion, twenty million, thirteen thousand, thirty-two".