13104331315891 has 2 divisors, whose sum is σ = 13104331315892. Its totient is φ = 13104331315890.

The previous prime is 13104331315849. The next prime is 13104331315909. The reversal of 13104331315891 is 19851313340131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13104331315891 - 2⁹ = 13104331315379 is a prime.

It is not a weakly prime, because it can be changed into another prime (13104331315841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6552165657945 + 6552165657946.

It is an arithmetic number, because the mean of its divisors is an integer number (6552165657946).

Almost surely, 2^{13104331315891} is an apocalyptic number.

13104331315891 is a deficient number, since it is larger than the sum of its proper divisors (1).

13104331315891 is an equidigital number, since it uses as much as digits as its factorization.

13104331315891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 43.

The spelling of 13104331315891 in words is "thirteen trillion, one hundred four billion, three hundred thirty-one million, three hundred fifteen thousand, eight hundred ninety-one".