313506521089 has 4 divisors (see below), whose sum is σ = 313567201024. Its totient is φ = 313445841156.

The previous prime is 313506521077. The next prime is 313506521093. The reversal of 313506521089 is 980125605313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 313506521089 - 2⁵ = 313506521057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313506521059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30332217 + ... + 30342550.

It is an arithmetic number, because the mean of its divisors is an integer number (78391800256).

Almost surely, 2^313506521089 is an apocalyptic number.

It is an amenable number.

313506521089 is a deficient number, since it is larger than the sum of its proper divisors (60679935).

313506521089 is an equidigital number, since it uses as much as digits as its factorization.

313506521089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60679934.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 313506521089 in words is "three hundred thirteen billion, five hundred six million, five hundred twenty-one thousand, eighty-nine".