31311012110120 has 32 divisors (see below), whose sum is σ = 70451208868320. Its totient is φ = 12524150333760.

The previous prime is 31311012110113. The next prime is 31311012110129. The reversal of 31311012110120 is 2101121011313.

It is not an unprimeable number, because it can be changed into a prime (31311012110129) 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, 5954246 + ... + 9903285.

It is an arithmetic number, because the mean of its divisors is an integer number (2201600277135).

Almost surely, 2^{31311012110120} is an apocalyptic number.

It is an amenable number.

31311012110120 is an abundant number, since it is smaller than the sum of its proper divisors (39140196758200).

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

31311012110120 is a wasteful number, since it uses less digits than its factorization.

31311012110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15906905 (or 15906901 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 31311012110120 its reverse (2101121011313), we get a palindrome (33412133121433).

The spelling of 31311012110120 in words is "thirty-one trillion, three hundred eleven billion, twelve million, one hundred ten thousand, one hundred twenty".