13308079104581 has 2 divisors, whose sum is σ = 13308079104582. Its totient is φ = 13308079104580.

The previous prime is 13308079104559. The next prime is 13308079104613. The reversal of 13308079104581 is 18540197080331.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9174441176356 + 4133637928225 = 3028934^2 + 2033135^2 .

It is a cyclic number.

It is not a de Polignac number, because 13308079104581 - 2⁴² = 8910032593477 is a prime.

It is a super-2 number, since 2×13308079104581² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13308079104521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6654039552290 + 6654039552291.

It is an arithmetic number, because the mean of its divisors is an integer number (6654039552291).

Almost surely, 2^{13308079104581} is an apocalyptic number.

It is an amenable number.

13308079104581 is a deficient number, since it is larger than the sum of its proper divisors (1).

13308079104581 is an equidigital number, since it uses as much as digits as its factorization.

13308079104581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 13308079104581 in words is "thirteen trillion, three hundred eight billion, seventy-nine million, one hundred four thousand, five hundred eighty-one".