31311021130099 has 16 divisors (see below), whose sum is σ = 32504732035776. Its totient is φ = 30136138128000.

The previous prime is 31311021130079. The next prime is 31311021130117. The reversal of 31311021130099 is 99003112011313.

It is a cyclic number.

It is not a de Polignac number, because 31311021130099 - 2²¹ = 31311019032947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31311021130079) 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, 423714 + ... + 7924744.

It is an arithmetic number, because the mean of its divisors is an integer number (2031545752236).

Almost surely, 2^{31311021130099} is an apocalyptic number.

31311021130099 is a deficient number, since it is larger than the sum of its proper divisors (1193710905677).

31311021130099 is a wasteful number, since it uses less digits than its factorization.

31311021130099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7502286.

The product of its (nonzero) digits is 4374, while the sum is 34.

The spelling of 31311021130099 in words is "thirty-one trillion, three hundred eleven billion, twenty-one million, one hundred thirty thousand, ninety-nine".