113531123 has 2 divisors, whose sum is σ = 113531124. Its totient is φ = 113531122.

The previous prime is 113531087. The next prime is 113531153. The reversal of 113531123 is 321135311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113531123 - 2⁸ = 113530867 is a prime.

It is a super-2 number, since 2×113531123² = 25778631779282258, which contains 22 as substring.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 113531095 and 113531104.

It is not a weakly prime, because it can be changed into another prime (113531153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56765561 + 56765562.

It is an arithmetic number, because the mean of its divisors is an integer number (56765562).

Almost surely, 2^113531123 is an apocalyptic number.

113531123 is a deficient number, since it is larger than the sum of its proper divisors (1).

113531123 is an equidigital number, since it uses as much as digits as its factorization.

113531123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270, while the sum is 20.

The square root of 113531123 is about 10655.0984509764. The cubic root of 113531123 is about 484.2150806823.

Adding to 113531123 its reverse (321135311), we get a palindrome (434666434).

The spelling of 113531123 in words is "one hundred thirteen million, five hundred thirty-one thousand, one hundred twenty-three".