13115452402057 has 16 divisors (see below), whose sum is σ = 14844162477312. Its totient is φ = 11519279495680.

The previous prime is 13115452402021. The next prime is 13115452402121. The reversal of 13115452402057 is 75020425451131.

It is a happy number.

It is not a de Polignac number, because 13115452402057 - 2³⁵ = 13081092663689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13115452402007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409049293 + ... + 409081354.

It is an arithmetic number, because the mean of its divisors is an integer number (927760154832).

Almost surely, 2^{13115452402057} is an apocalyptic number.

13115452402057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13115452402057 is a deficient number, since it is larger than the sum of its proper divisors (1728710075255).

13115452402057 is a wasteful number, since it uses less digits than its factorization.

13115452402057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818130728.

The product of its (nonzero) digits is 168000, while the sum is 40.

Adding to 13115452402057 its reverse (75020425451131), we get a palindrome (88135877853188).

The spelling of 13115452402057 in words is "thirteen trillion, one hundred fifteen billion, four hundred fifty-two million, four hundred two thousand, fifty-seven".