31599796113 has 16 divisors (see below), whose sum is σ = 47085123840. Its totient is φ = 20944755792.

The previous prime is 31599796103. The next prime is 31599796139. The reversal of 31599796113 is 31169799513.

31599796113 is a `hidden beast` number, since 3 + 15 + 9 + 9 + 7 + 9 + 611 + 3 = 666.

It is not a de Polignac number, because 31599796113 - 2²⁸ = 31331360657 is a prime.

It is a super-2 number, since 2×31599796113² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31599796113.

It is not an unprimeable number, because it can be changed into a prime (31599796103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3377881 + ... + 3387222.

It is an arithmetic number, because the mean of its divisors is an integer number (2942820240).

Almost surely, 2^31599796113 is an apocalyptic number.

It is an amenable number.

31599796113 is a deficient number, since it is larger than the sum of its proper divisors (15485327727).

31599796113 is a wasteful number, since it uses less digits than its factorization.

31599796113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6765285 (or 6765279 counting only the distinct ones).

The product of its digits is 1377810, while the sum is 54.

The spelling of 31599796113 in words is "thirty-one billion, five hundred ninety-nine million, seven hundred ninety-six thousand, one hundred thirteen".