31320013000099 has 4 divisors (see below), whose sum is σ = 31320990042264. Its totient is φ = 31319035957936.

The previous prime is 31320013000009. The next prime is 31320013000103. The reversal of 31320013000099 is 99000031002313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31320013000099 - 2⁴¹ = 29120989744547 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31320013000099.

It is not an unprimeable number, because it can be changed into a prime (31320013000009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488472997 + ... + 488537110.

It is an arithmetic number, because the mean of its divisors is an integer number (7830247510566).

Almost surely, 2^{31320013000099} is an apocalyptic number.

31320013000099 is a deficient number, since it is larger than the sum of its proper divisors (977042165).

31320013000099 is an equidigital number, since it uses as much as digits as its factorization.

31320013000099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977042164.

The product of its (nonzero) digits is 4374, while the sum is 31.

The spelling of 31320013000099 in words is "thirty-one trillion, three hundred twenty billion, thirteen million, ninety-nine", and thus it is an aban number.