31120012111232 has 64 divisors (see below), whose sum is σ = 67643324985600. Its totient is φ = 14143296576000.

The previous prime is 31120012111157. The next prime is 31120012111241. The reversal of 31120012111232 is 23211121002113.

31120012111232 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7536869 + ... + 10910747.

It is an arithmetic number, because the mean of its divisors is an integer number (1056926952900).

Almost surely, 2^{31120012111232} is an apocalyptic number.

31120012111232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31120012111232 is an abundant number, since it is smaller than the sum of its proper divisors (36523312874368).

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

31120012111232 is a wasteful number, since it uses less digits than its factorization.

31120012111232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380455 (or 3380443 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 31120012111232 its reverse (23211121002113), we get a palindrome (54331133113345).

The spelling of 31120012111232 in words is "thirty-one trillion, one hundred twenty billion, twelve million, one hundred eleven thousand, two hundred thirty-two".