13317872957171 has 2 divisors, whose sum is σ = 13317872957172. Its totient is φ = 13317872957170.

The previous prime is 13317872957159. The next prime is 13317872957173. The reversal of 13317872957171 is 17175927871331.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13317872957171 - 2¹⁴ = 13317872940787 is a prime.

It is a Sophie Germain prime.

Together with 13317872957173, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13317872957173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6658936478585 + 6658936478586.

It is an arithmetic number, because the mean of its divisors is an integer number (6658936478586).

Almost surely, 2^{13317872957171} is an apocalyptic number.

13317872957171 is a deficient number, since it is larger than the sum of its proper divisors (1).

13317872957171 is an equidigital number, since it uses as much as digits as its factorization.

13317872957171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15558480, while the sum is 62.

The spelling of 13317872957171 in words is "thirteen trillion, three hundred seventeen billion, eight hundred seventy-two million, nine hundred fifty-seven thousand, one hundred seventy-one".