313511115313 has 6 divisors (see below), whose sum is σ = 344603126882. Its totient is φ = 285010104720.

The previous prime is 313511115283. The next prime is 313511115331.

313511115313 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 265053017889 + 48458097424 = 514833^2 + 220132^2 .

It is a de Polignac number, because none of the positive numbers 2^k-313511115313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313511115383) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1295500356 + ... + 1295500597.

Almost surely, 2^313511115313 is an apocalyptic number.

It is an amenable number.

313511115313 is a deficient number, since it is larger than the sum of its proper divisors (31092011569).

313511115313 is a wasteful number, since it uses less digits than its factorization.

313511115313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591000975 (or 2591000964 counting only the distinct ones).

The product of its digits is 2025, while the sum is 28.

It can be divided in two parts, 313511 and 115313, that added together give a palindrome (428824).

The spelling of 313511115313 in words is "three hundred thirteen billion, five hundred eleven million, one hundred fifteen thousand, three hundred thirteen".