113422431 has 4 divisors (see below), whose sum is σ = 151229912. Its totient is φ = 75614952.

The previous prime is 113422403. The next prime is 113422489. The reversal of 113422431 is 134224311.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 113422431 - 2⁵ = 113422399 is a prime.

It is a super-2 number, since 2×113422431² = 25729295707899522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113422398 and 113422407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113422531) 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, 18903736 + ... + 18903741.

It is an arithmetic number, because the mean of its divisors is an integer number (37807478).

Almost surely, 2^113422431 is an apocalyptic number.

113422431 is a deficient number, since it is larger than the sum of its proper divisors (37807481).

113422431 is an equidigital number, since it uses as much as digits as its factorization.

113422431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37807480.

The product of its digits is 576, while the sum is 21.

The square root of 113422431 is about 10649.9967605629. The cubic root of 113422431 is about 484.0605060049.

Adding to 113422431 its reverse (134224311), we get a palindrome (247646742).

The spelling of 113422431 in words is "one hundred thirteen million, four hundred twenty-two thousand, four hundred thirty-one".