13231305218913 has 8 divisors (see below), whose sum is σ = 17930949149376. Its totient is φ = 8676265717200.

The previous prime is 13231305218867. The next prime is 13231305218977. The reversal of 13231305218913 is 31981250313231.

13231305218913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13231305218913 - 2⁸ = 13231305218657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13231305218983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36151106973 + ... + 36151107338.

It is an arithmetic number, because the mean of its divisors is an integer number (2241368643672).

Almost surely, 2^{13231305218913} is an apocalyptic number.

It is an amenable number.

13231305218913 is a deficient number, since it is larger than the sum of its proper divisors (4699643930463).

13231305218913 is an equidigital number, since it uses as much as digits as its factorization.

13231305218913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72302214375.

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 13231305218913 in words is "thirteen trillion, two hundred thirty-one billion, three hundred five million, two hundred eighteen thousand, nine hundred thirteen".