23320503 has 6 divisors (see below), whose sum is σ = 33685184. Its totient is φ = 15546996.

The previous prime is 23320499. The next prime is 23320511. The reversal of 23320503 is 30502332.

It is not a de Polignac number, because 23320503 - 2² = 23320499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23320523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1295575 + ... + 1295592.

Almost surely, 2^23320503 is an apocalyptic number.

23320503 is a deficient number, since it is larger than the sum of its proper divisors (10364681).

23320503 is a wasteful number, since it uses less digits than its factorization.

23320503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591173 (or 2591170 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 23320503 is about 4829.1306671077. The cubic root of 23320503 is about 285.7015771609.

Adding to 23320503 its reverse (30502332), we get a palindrome (53822835).

It can be divided in two parts, 233 and 20503, that added together give a 4-th power (20736 = 12⁴).

The spelling of 23320503 in words is "twenty-three million, three hundred twenty thousand, five hundred three".