113431427 has 2 divisors, whose sum is σ = 113431428. Its totient is φ = 113431426.

The previous prime is 113431399. The next prime is 113431481. The reversal of 113431427 is 724134311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113431427 - 2⁶ = 113431363 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113431396 and 113431405.

It is not a weakly prime, because it can be changed into another prime (113451427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56715713 + 56715714.

It is an arithmetic number, because the mean of its divisors is an integer number (56715714).

Almost surely, 2^113431427 is an apocalyptic number.

113431427 is a deficient number, since it is larger than the sum of its proper divisors (1).

113431427 is an equidigital number, since it uses as much as digits as its factorization.

113431427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 26.

The square root of 113431427 is about 10650.4190997350. The cubic root of 113431427 is about 484.0733032771.

Adding to 113431427 its reverse (724134311), we get a palindrome (837565738).

The spelling of 113431427 in words is "one hundred thirteen million, four hundred thirty-one thousand, four hundred twenty-seven".