313310121013 has 4 divisors (see below), whose sum is σ = 313319469100. Its totient is φ = 313300772928.

The previous prime is 313310120993. The next prime is 313310121017. The reversal of 313310121013 is 310121013313.

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

It can be written as a sum of positive squares in 2 ways, for example, as 45274051729 + 268036069284 = 212777^2 + 517722^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313310121013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313310121017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4623588 + ... + 4690861.

It is an arithmetic number, because the mean of its divisors is an integer number (78329867275).

Almost surely, 2^313310121013 is an apocalyptic number.

It is an amenable number.

313310121013 is a deficient number, since it is larger than the sum of its proper divisors (9348087).

313310121013 is an equidigital number, since it uses as much as digits as its factorization.

313310121013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9348086.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 313310121013 its reverse (310121013313), we get a palindrome (623431134326).

The spelling of 313310121013 in words is "three hundred thirteen billion, three hundred ten million, one hundred twenty-one thousand, thirteen".