23403023 has 4 divisors (see below), whose sum is σ = 26746320. Its totient is φ = 20059728.

The previous prime is 23403011. The next prime is 23403031. The reversal of 23403023 is 32030432.

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 23403023 - 2⁴ = 23403007 is a prime.

It is a super-4 number, since 4×23403023⁴ (a number of 31 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23402992 and 23403010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23403043) 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, 1671638 + ... + 1671651.

It is an arithmetic number, because the mean of its divisors is an integer number (6686580).

Almost surely, 2^23403023 is an apocalyptic number.

23403023 is a deficient number, since it is larger than the sum of its proper divisors (3343297).

23403023 is an equidigital number, since it uses as much as digits as its factorization.

23403023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3343296.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 23403023 is about 4837.6671030570. The cubic root of 23403023 is about 286.0381671071.

Adding to 23403023 its reverse (32030432), we get a palindrome (55433455).

The spelling of 23403023 in words is "twenty-three million, four hundred three thousand, twenty-three".