113173686517 has 2 divisors, whose sum is σ = 113173686518. Its totient is φ = 113173686516.

The previous prime is 113173686503. The next prime is 113173686533. The reversal of 113173686517 is 715686371311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74398563121 + 38775123396 = 272761^2 + 196914^2 .

It is a cyclic number.

It is not a de Polignac number, because 113173686517 - 2⁷ = 113173686389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113173686547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56586843258 + 56586843259.

It is an arithmetic number, because the mean of its divisors is an integer number (56586843259).

Almost surely, 2^113173686517 is an apocalyptic number.

It is an amenable number.

113173686517 is a deficient number, since it is larger than the sum of its proper divisors (1).

113173686517 is an equidigital number, since it uses as much as digits as its factorization.

113173686517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 49.

The spelling of 113173686517 in words is "one hundred thirteen billion, one hundred seventy-three million, six hundred eighty-six thousand, five hundred seventeen".