31311312120332 has 6 divisors (see below), whose sum is σ = 54794796210588. Its totient is φ = 15655656060164.

The previous prime is 31311312120323. The next prime is 31311312120337. The reversal of 31311312120332 is 23302121311313.

It is not an unprimeable number, because it can be changed into a prime (31311312120337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3913914015038 + ... + 3913914015045.

It is an arithmetic number, because the mean of its divisors is an integer number (9132466035098).

Almost surely, 2^{31311312120332} is an apocalyptic number.

It is an amenable number.

31311312120332 is a deficient number, since it is larger than the sum of its proper divisors (23483484090256).

31311312120332 is a wasteful number, since it uses less digits than its factorization.

31311312120332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7827828030087 (or 7827828030085 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 31311312120332 its reverse (23302121311313), we get a palindrome (54613433431645).

The spelling of 31311312120332 in words is "thirty-one trillion, three hundred eleven billion, three hundred twelve million, one hundred twenty thousand, three hundred thirty-two".