23109923 has 4 divisors (see below), whose sum is σ = 23119728. Its totient is φ = 23100120.

The previous prime is 23109913. The next prime is 23109943. The reversal of 23109923 is 32990132.

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 a de Polignac number, because none of the positive numbers 2^k-23109923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23109913) 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, 1013 + ... + 6873.

It is an arithmetic number, because the mean of its divisors is an integer number (5779932).

Almost surely, 2^23109923 is an apocalyptic number.

23109923 is a deficient number, since it is larger than the sum of its proper divisors (9805).

23109923 is an equidigital number, since it uses as much as digits as its factorization.

23109923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9804.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 23109923 is about 4807.2781280055. The cubic root of 23109923 is about 284.8390308822.

The spelling of 23109923 in words is "twenty-three million, one hundred nine thousand, nine hundred twenty-three".