13231320111791 has 2 divisors, whose sum is σ = 13231320111792. Its totient is φ = 13231320111790.

The previous prime is 13231320111761. The next prime is 13231320111827. The reversal of 13231320111791 is 19711102313231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13231320111791 - 2³⁴ = 13214140242607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13231320111761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6615660055895 + 6615660055896.

It is an arithmetic number, because the mean of its divisors is an integer number (6615660055896).

Almost surely, 2^{13231320111791} is an apocalyptic number.

13231320111791 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231320111791 is an equidigital number, since it uses as much as digits as its factorization.

13231320111791 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 35.

The spelling of 13231320111791 in words is "thirteen trillion, two hundred thirty-one billion, three hundred twenty million, one hundred eleven thousand, seven hundred ninety-one".