113523724309 has 2 divisors, whose sum is σ = 113523724310. Its totient is φ = 113523724308.

The previous prime is 113523724297. The next prime is 113523724319. The reversal of 113523724309 is 903427325311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61913880625 + 51609843684 = 248825^2 + 227178^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113523724309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113523724319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56761862154 + 56761862155.

It is an arithmetic number, because the mean of its divisors is an integer number (56761862155).

Almost surely, 2^113523724309 is an apocalyptic number.

It is an amenable number.

113523724309 is a deficient number, since it is larger than the sum of its proper divisors (1).

113523724309 is an equidigital number, since it uses as much as digits as its factorization.

113523724309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 40.

The spelling of 113523724309 in words is "one hundred thirteen billion, five hundred twenty-three million, seven hundred twenty-four thousand, three hundred nine".