113817473257 has 2 divisors, whose sum is σ = 113817473258. Its totient is φ = 113817473256.

The previous prime is 113817473227. The next prime is 113817473293. The reversal of 113817473257 is 752374718311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113625623056 + 191850201 = 337084^2 + 13851^2 .

It is an emirp because it is prime and its reverse (752374718311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113817473257 - 2¹⁵ = 113817440489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113817473257.

It is not a weakly prime, because it can be changed into another prime (113817473227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56908736628 + 56908736629.

It is an arithmetic number, because the mean of its divisors is an integer number (56908736629).

Almost surely, 2^113817473257 is an apocalyptic number.

It is an amenable number.

113817473257 is a deficient number, since it is larger than the sum of its proper divisors (1).

113817473257 is an equidigital number, since it uses as much as digits as its factorization.

113817473257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 987840, while the sum is 49.

The spelling of 113817473257 in words is "one hundred thirteen billion, eight hundred seventeen million, four hundred seventy-three thousand, two hundred fifty-seven".