315031220099 has 4 divisors (see below), whose sum is σ = 321734012064. Its totient is φ = 308328428136.

The previous prime is 315031220081. The next prime is 315031220111. The reversal of 315031220099 is 990022130513.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315031220099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315031226099) 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, 3351395912 + ... + 3351396005.

It is an arithmetic number, because the mean of its divisors is an integer number (80433503016).

Almost surely, 2^315031220099 is an apocalyptic number.

315031220099 is a deficient number, since it is larger than the sum of its proper divisors (6702791965).

315031220099 is an equidigital number, since it uses as much as digits as its factorization.

315031220099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6702791964.

The product of its (nonzero) digits is 14580, while the sum is 35.

The spelling of 315031220099 in words is "three hundred fifteen billion, thirty-one million, two hundred twenty thousand, ninety-nine".