31030011232 has 48 divisors (see below), whose sum is σ = 67638739392. Its totient is φ = 13894024320.

The previous prime is 31030011203. The next prime is 31030011239. The reversal of 31030011232 is 23211003013.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31030011239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634278 + ... + 681445.

It is an arithmetic number, because the mean of its divisors is an integer number (1409140404).

Almost surely, 2^31030011232 is an apocalyptic number.

31030011232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31030011232 is an abundant number, since it is smaller than the sum of its proper divisors (36608728160).

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

31030011232 is a wasteful number, since it uses less digits than its factorization.

31030011232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315811 (or 1315803 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31030011232 its reverse (23211003013), we get a palindrome (54241014245).

The spelling of 31030011232 in words is "thirty-one billion, thirty million, eleven thousand, two hundred thirty-two".