13012317251317 has 4 divisors (see below), whose sum is σ = 13461017846220. Its totient is φ = 12563616656416.

The previous prime is 13012317251309. The next prime is 13012317251363. The reversal of 13012317251317 is 71315271321031.

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 9570398083236 + 3441919168081 = 3093606^2 + 1855241^2 .

It is a cyclic number.

It is not a de Polignac number, because 13012317251317 - 2³ = 13012317251309 is a prime.

It is a super-2 number, since 2×13012317251317² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012317251387) 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, 224350297408 + ... + 224350297465.

It is an arithmetic number, because the mean of its divisors is an integer number (3365254461555).

Almost surely, 2^{13012317251317} is an apocalyptic number.

It is an amenable number.

13012317251317 is a deficient number, since it is larger than the sum of its proper divisors (448700594903).

13012317251317 is an equidigital number, since it uses as much as digits as its factorization.

13012317251317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448700594902.

The product of its (nonzero) digits is 26460, while the sum is 37.

Adding to 13012317251317 its reverse (71315271321031), we get a palindrome (84327588572348).

The spelling of 13012317251317 in words is "thirteen trillion, twelve billion, three hundred seventeen million, two hundred fifty-one thousand, three hundred seventeen".