23124431 has 12 divisors (see below), whose sum is σ = 25561536. Its totient is φ = 20903520.

The previous prime is 23124359. The next prime is 23124449. The reversal of 23124431 is 13442132.

It is a de Polignac number, because none of the positive numbers 2^k-23124431 is a prime.

It is a super-2 number, since 2×23124431² = 1069478618147522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23124631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26555 + ... + 27411.

It is an arithmetic number, because the mean of its divisors is an integer number (2130128).

Almost surely, 2^23124431 is an apocalyptic number.

23124431 is a deficient number, since it is larger than the sum of its proper divisors (2437105).

23124431 is a wasteful number, since it uses less digits than its factorization.

23124431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102 (or 1091 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 23124431 is about 4808.7868532510. The cubic root of 23124431 is about 284.8986240449.

Adding to 23124431 its reverse (13442132), we get a palindrome (36566563).

The spelling of 23124431 in words is "twenty-three million, one hundred twenty-four thousand, four hundred thirty-one".