13211572415117 has 4 divisors (see below), whose sum is σ = 13518818285280. Its totient is φ = 12904326544956.

The previous prime is 13211572415089. The next prime is 13211572415147. The reversal of 13211572415117 is 71151427511231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13211572415117 - 2²⁴ = 13211555637901 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 (13211572415147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153622935017 + ... + 153622935102.

It is an arithmetic number, because the mean of its divisors is an integer number (3379704571320).

Almost surely, 2^{13211572415117} is an apocalyptic number.

It is an amenable number.

13211572415117 is a deficient number, since it is larger than the sum of its proper divisors (307245870163).

13211572415117 is an equidigital number, since it uses as much as digits as its factorization.

13211572415117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307245870162.

The product of its digits is 58800, while the sum is 41.

Adding to 13211572415117 its reverse (71151427511231), we get a palindrome (84362999926348).

The spelling of 13211572415117 in words is "thirteen trillion, two hundred eleven billion, five hundred seventy-two million, four hundred fifteen thousand, one hundred seventeen".