31313033210120 has 64 divisors (see below), whose sum is σ = 75971287324800. Its totient is φ = 11576577093120.

The previous prime is 31313033210111. The next prime is 31313033210183. The reversal of 31313033210120 is 2101233031313.

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 15 ways as a sum of consecutive naturals, for example, 502424444 + ... + 502486763.

It is an arithmetic number, because the mean of its divisors is an integer number (1187051364450).

Almost surely, 2^{31313033210120} is an apocalyptic number.

It is an amenable number.

31313033210120 is an abundant number, since it is smaller than the sum of its proper divisors (44658254114680).

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

31313033210120 is a wasteful number, since it uses less digits than its factorization.

31313033210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004911278 (or 1004911274 counting only the distinct ones).

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

Adding to 31313033210120 its reverse (2101233031313), we get a palindrome (33414266241433).

The spelling of 31313033210120 in words is "thirty-one trillion, three hundred thirteen billion, thirty-three million, two hundred ten thousand, one hundred twenty".