31013230232 has 32 divisors (see below), whose sum is σ = 58712860800. Its totient is φ = 15356611584.

The previous prime is 31013230223. The next prime is 31013230243. The reversal of 31013230232 is 23203231013.

It is a congruent number.

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, 1974233 + ... + 1989879.

It is an arithmetic number, because the mean of its divisors is an integer number (1834776900).

Almost surely, 2^31013230232 is an apocalyptic number.

It is an amenable number.

31013230232 is a deficient number, since it is larger than the sum of its proper divisors (27699630568).

31013230232 is a wasteful number, since it uses less digits than its factorization.

31013230232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18035 (or 18031 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31013230232 its reverse (23203231013), we get a palindrome (54216461245).

The spelling of 31013230232 in words is "thirty-one billion, thirteen million, two hundred thirty thousand, two hundred thirty-two".