113251263617 has 2 divisors, whose sum is σ = 113251263618. Its totient is φ = 113251263616.

The previous prime is 113251263613. The next prime is 113251263659. The reversal of 113251263617 is 716362152311.

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., 65946753601 + 47304510016 = 256801^2 + 217496^2 .

It is a cyclic number.

It is not a de Polignac number, because 113251263617 - 2² = 113251263613 is a prime.

It is not a weakly prime, because it can be changed into another prime (113251263613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56625631808 + 56625631809.

It is an arithmetic number, because the mean of its divisors is an integer number (56625631809).

Almost surely, 2^113251263617 is an apocalyptic number.

It is an amenable number.

113251263617 is a deficient number, since it is larger than the sum of its proper divisors (1).

113251263617 is an equidigital number, since it uses as much as digits as its factorization.

113251263617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45360, while the sum is 38.

The spelling of 113251263617 in words is "one hundred thirteen billion, two hundred fifty-one million, two hundred sixty-three thousand, six hundred seventeen".