113231969 has 2 divisors, whose sum is σ = 113231970. Its totient is φ = 113231968.

The previous prime is 113231959. The next prime is 113231981. The reversal of 113231969 is 969132311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111091600 + 2140369 = 10540^2 + 1463^2 .

It is a cyclic number.

It is not a de Polignac number, because 113231969 - 2⁴ = 113231953 is a prime.

It is a super-2 number, since 2×113231969² = 25642957607233922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (113231959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56615984 + 56615985.

It is an arithmetic number, because the mean of its divisors is an integer number (56615985).

Almost surely, 2^113231969 is an apocalyptic number.

It is an amenable number.

113231969 is a deficient number, since it is larger than the sum of its proper divisors (1).

113231969 is an equidigital number, since it uses as much as digits as its factorization.

113231969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748, while the sum is 35.

The square root of 113231969 is about 10641.0511228919. The cubic root of 113231969 is about 483.7894050566.

The spelling of 113231969 in words is "one hundred thirteen million, two hundred thirty-one thousand, nine hundred sixty-nine".