31313020023132 has 48 divisors (see below), whose sum is σ = 76941366364800. Its totient is φ = 9884182835520.

The previous prime is 31313020023053. The next prime is 31313020023157. The reversal of 31313020023132 is 23132002031313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28199094 + ... + 29288477.

It is an arithmetic number, because the mean of its divisors is an integer number (1602945132600).

Almost surely, 2^{31313020023132} is an apocalyptic number.

It is an amenable number.

31313020023132 is an abundant number, since it is smaller than the sum of its proper divisors (45628346341668).

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

31313020023132 is a wasteful number, since it uses less digits than its factorization.

31313020023132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57489986 (or 57489984 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 31313020023132 its reverse (23132002031313), we get a palindrome (54445022054445).

The spelling of 31313020023132 in words is "thirty-one trillion, three hundred thirteen billion, twenty million, twenty-three thousand, one hundred thirty-two".