331320111232 has 64 divisors (see below), whose sum is σ = 726662851200. Its totient is φ = 149218329600.

The previous prime is 331320111179. The next prime is 331320111259. The reversal of 331320111232 is 232111023133.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×331320111232² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 925944 + ... + 1232887.

It is an arithmetic number, because the mean of its divisors is an integer number (11354107050).

Almost surely, 2^331320111232 is an apocalyptic number.

331320111232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

331320111232 is an abundant number, since it is smaller than the sum of its proper divisors (395342739968).

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

331320111232 is a wasteful number, since it uses less digits than its factorization.

331320111232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158965 (or 2158953 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 331320111232 its reverse (232111023133), we get a palindrome (563431134365).

The spelling of 331320111232 in words is "three hundred thirty-one billion, three hundred twenty million, one hundred eleven thousand, two hundred thirty-two".