113517982997 has 2 divisors, whose sum is σ = 113517982998. Its totient is φ = 113517982996.

The previous prime is 113517982979. The next prime is 113517983041. The reversal of 113517982997 is 799289715311.

It is a happy number.

Together with previous prime (113517982979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107645672836 + 5872310161 = 328094^2 + 76631^2 .

It is a cyclic number.

It is not a de Polignac number, because 113517982997 - 2²⁶ = 113450874133 is a prime.

It is a super-2 number, since 2×113517982997² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113517982937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56758991498 + 56758991499.

It is an arithmetic number, because the mean of its divisors is an integer number (56758991499).

Almost surely, 2^113517982997 is an apocalyptic number.

It is an amenable number.

113517982997 is a deficient number, since it is larger than the sum of its proper divisors (1).

113517982997 is an equidigital number, since it uses as much as digits as its factorization.

113517982997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8573040, while the sum is 62.

The spelling of 113517982997 in words is "one hundred thirteen billion, five hundred seventeen million, nine hundred eighty-two thousand, nine hundred ninety-seven".