31393107749100 has 72 divisors (see below), whose sum is σ = 95611289583040. Its totient is φ = 7930890377280.

The previous prime is 31393107749093. The next prime is 31393107749131. The reversal of 31393107749100 is 194770139313.

It is a self number, because there is not a number n which added to its sum of digits gives 31393107749100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2753775682 + ... + 2753787081.

Almost surely, 2^{31393107749100} is an apocalyptic number.

31393107749100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31393107749100 is an abundant number, since it is smaller than the sum of its proper divisors (64218181833940).

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

31393107749100 is a wasteful number, since it uses less digits than its factorization.

31393107749100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5507562799 (or 5507562792 counting only the distinct ones).

The product of its (nonzero) digits is 428652, while the sum is 48.

The spelling of 31393107749100 in words is "thirty-one trillion, three hundred ninety-three billion, one hundred seven million, seven hundred forty-nine thousand, one hundred".