313311313013 has 4 divisors (see below), whose sum is σ = 318447564108. Its totient is φ = 308175061920.

The previous prime is 313311312989. The next prime is 313311313037. The reversal of 313311313013 is 310313113313.

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

It is an interprime number because it is at equal distance from previous prime (313311312989) and next prime (313311313037).

It can be written as a sum of positive squares in 2 ways, for example, as 78054301924 + 235257011089 = 279382^2 + 485033^2 .

It is a cyclic number.

It is not a de Polignac number, because 313311313013 - 2¹² = 313311308917 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 313311313013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313311313213) 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, 2568125456 + ... + 2568125577.

It is an arithmetic number, because the mean of its divisors is an integer number (79611891027).

Almost surely, 2^313311313013 is an apocalyptic number.

It is an amenable number.

313311313013 is a deficient number, since it is larger than the sum of its proper divisors (5136251095).

313311313013 is an equidigital number, since it uses as much as digits as its factorization.

313311313013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5136251094.

The product of its (nonzero) digits is 729, while the sum is 23.

Adding to 313311313013 its reverse (310313113313), we get a palindrome (623624426326).

The spelling of 313311313013 in words is "three hundred thirteen billion, three hundred eleven million, three hundred thirteen thousand, thirteen".