31311323300120 has 32 divisors (see below), whose sum is σ = 70742803079520. Its totient is φ = 12472560314880.

The previous prime is 31311323300083. The next prime is 31311323300143. The reversal of 31311323300120 is 2100332311313.

It is a congruent number.

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, 1624021652 + ... + 1624040931.

It is an arithmetic number, because the mean of its divisors is an integer number (2210712596235).

Almost surely, 2^{31311323300120} is an apocalyptic number.

It is an amenable number.

31311323300120 is an abundant number, since it is smaller than the sum of its proper divisors (39431479779400).

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

31311323300120 is a wasteful number, since it uses less digits than its factorization.

31311323300120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3248062835 (or 3248062831 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31311323300120 its reverse (2100332311313), we get a palindrome (33411655611433).

The spelling of 31311323300120 in words is "thirty-one trillion, three hundred eleven billion, three hundred twenty-three million, three hundred thousand, one hundred twenty".