23118923 has 4 divisors (see below), whose sum is σ = 23128608. Its totient is φ = 23109240.

The previous prime is 23118919. The next prime is 23118937. The reversal of 23118923 is 32981132.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23118923 - 2² = 23118919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23118943) 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, 1565 + ... + 6977.

It is an arithmetic number, because the mean of its divisors is an integer number (5782152).

Almost surely, 2^23118923 is an apocalyptic number.

23118923 is a deficient number, since it is larger than the sum of its proper divisors (9685).

23118923 is an equidigital number, since it uses as much as digits as its factorization.

23118923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9684.

The product of its digits is 2592, while the sum is 29.

The square root of 23118923 is about 4808.2141175285. The cubic root of 23118923 is about 284.8760022814.

The spelling of 23118923 in words is "twenty-three million, one hundred eighteen thousand, nine hundred twenty-three".