31013022232 has 64 divisors (see below), whose sum is σ = 63239270400. Its totient is φ = 14204160000.

The previous prime is 31013022223. The next prime is 31013022253. The reversal of 31013022232 is 23222031013.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7541857 + ... + 7545967.

It is an arithmetic number, because the mean of its divisors is an integer number (988113600).

Almost surely, 2^31013022232 is an apocalyptic number.

It is an amenable number.

31013022232 is an abundant number, since it is smaller than the sum of its proper divisors (32226248168).

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

31013022232 is a wasteful number, since it uses less digits than its factorization.

31013022232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5768 (or 5764 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 31013022232 its reverse (23222031013), we get a palindrome (54235053245).

The spelling of 31013022232 in words is "thirty-one billion, thirteen million, twenty-two thousand, two hundred thirty-two".