31311021130108 has 24 divisors (see below), whose sum is σ = 57686065557120. Its totient is φ = 14829512934960.

The previous prime is 31311021130079. The next prime is 31311021130117. The reversal of 31311021130108 is 80103112011313.

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, 27541816 + ... + 28656127.

It is an arithmetic number, because the mean of its divisors is an integer number (2403586064880).

Almost surely, 2^{31311021130108} is an apocalyptic number.

31311021130108 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

31311021130108 is a deficient number, since it is larger than the sum of its proper divisors (26375044427012).

31311021130108 is a wasteful number, since it uses less digits than its factorization.

31311021130108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56205297 (or 56205295 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 31311021130108 in words is "thirty-one trillion, three hundred eleven billion, twenty-one million, one hundred thirty thousand, one hundred eight".