31311113099 has 16 divisors (see below), whose sum is σ = 37728652800. Its totient is φ = 25384290624.

The previous prime is 31311113069. The next prime is 31311113101. The reversal of 31311113099 is 99031111313.

It is not a de Polignac number, because 31311113099 - 2¹⁶ = 31311047563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31311113059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108719 + ... + 272840.

It is an arithmetic number, because the mean of its divisors is an integer number (2358040800).

Almost surely, 2^31311113099 is an apocalyptic number.

31311113099 is a deficient number, since it is larger than the sum of its proper divisors (6417539701).

31311113099 is a wasteful number, since it uses less digits than its factorization.

31311113099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382202.

The product of its (nonzero) digits is 2187, while the sum is 32.

The spelling of 31311113099 in words is "thirty-one billion, three hundred eleven million, one hundred thirteen thousand, ninety-nine".