31313183435916 has 12 divisors (see below), whose sum is σ = 73064094683832. Its totient is φ = 10437727811968.

The previous prime is 31313183435893. The next prime is 31313183435917. The reversal of 31313183435916 is 61953438131313.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (31313183435917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304715976485 + ... + 1304715976508.

It is an arithmetic number, because the mean of its divisors is an integer number (6088674556986).

Almost surely, 2^{31313183435916} is an apocalyptic number.

It is an amenable number.

31313183435916 is an abundant number, since it is smaller than the sum of its proper divisors (41750911247916).

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

31313183435916 is a wasteful number, since it uses less digits than its factorization.

31313183435916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609431953000 (or 2609431952998 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 51.

The spelling of 31313183435916 in words is "thirty-one trillion, three hundred thirteen billion, one hundred eighty-three million, four hundred thirty-five thousand, nine hundred sixteen".