113124431 has 4 divisors (see below), whose sum is σ = 129285072. Its totient is φ = 96963792.

The previous prime is 113124421. The next prime is 113124433. The reversal of 113124431 is 134421311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134421311 = 43 ⋅3126077.

It is a cyclic number.

It is not a de Polignac number, because 113124431 - 2⁶ = 113124367 is a prime.

It is a super-2 number, since 2×113124431² = 25594273778147522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113124433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8080310 + ... + 8080323.

It is an arithmetic number, because the mean of its divisors is an integer number (32321268).

Almost surely, 2^113124431 is an apocalyptic number.

113124431 is a deficient number, since it is larger than the sum of its proper divisors (16160641).

113124431 is an equidigital number, since it uses as much as digits as its factorization.

113124431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16160640.

The product of its digits is 288, while the sum is 20.

The square root of 113124431 is about 10635.9969443395. The cubic root of 113124431 is about 483.6362026702.

Adding to 113124431 its reverse (134421311), we get a palindrome (247545742).

The spelling of 113124431 in words is "one hundred thirteen million, one hundred twenty-four thousand, four hundred thirty-one".