23309323 has 4 divisors (see below), whose sum is σ = 23523280. Its totient is φ = 23095368.

The previous prime is 23309309. The next prime is 23309339. The reversal of 23309323 is 32390332.

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

It is a cyclic number.

It is not a de Polignac number, because 23309323 - 2⁵ = 23309291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23309353) 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, 106815 + ... + 107032.

It is an arithmetic number, because the mean of its divisors is an integer number (5880820).

Almost surely, 2^23309323 is an apocalyptic number.

23309323 is a deficient number, since it is larger than the sum of its proper divisors (213957).

23309323 is a wasteful number, since it uses less digits than its factorization.

23309323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213956.

The product of its (nonzero) digits is 2916, while the sum is 25.

The square root of 23309323 is about 4827.9729700983. The cubic root of 23309323 is about 285.6559141350.

Adding to 23309323 its reverse (32390332), we get a palindrome (55699655).

It can be divided in two parts, 23309 and 323, that added together give a palindrome (23632).

The spelling of 23309323 in words is "twenty-three million, three hundred nine thousand, three hundred twenty-three".