113431583 has 2 divisors, whose sum is σ = 113431584. Its totient is φ = 113431582.

The previous prime is 113431579. The next prime is 113431589. The reversal of 113431583 is 385134311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113431583 - 2² = 113431579 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113431589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56715791 + 56715792.

It is an arithmetic number, because the mean of its divisors is an integer number (56715792).

Almost surely, 2^113431583 is an apocalyptic number.

113431583 is a deficient number, since it is larger than the sum of its proper divisors (1).

113431583 is an equidigital number, since it uses as much as digits as its factorization.

113431583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 29.

The square root of 113431583 is about 10650.4264233879. The cubic root of 113431583 is about 484.0735251892.

Adding to 113431583 its reverse (385134311), we get a palindrome (498565894).

The spelling of 113431583 in words is "one hundred thirteen million, four hundred thirty-one thousand, five hundred eighty-three".