23133503 has 8 divisors (see below), whose sum is σ = 24202800. Its totient is φ = 22082368.

The previous prime is 23133497. The next prime is 23133563. The reversal of 23133503 is 30533132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23133503 - 2²² = 18939199 is a prime.

It is a super-2 number, since 2×23133503² = 1070317922102018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23133563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1901 + ... + 7062.

It is an arithmetic number, because the mean of its divisors is an integer number (3025350).

Almost surely, 2^23133503 is an apocalyptic number.

23133503 is a deficient number, since it is larger than the sum of its proper divisors (1069297).

23133503 is an equidigital number, since it uses as much as digits as its factorization.

23133503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9081.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 23133503 is about 4809.7300340040. The cubic root of 23133503 is about 284.9358755907.

Adding to 23133503 its reverse (30533132), we get a palindrome (53666635).

The spelling of 23133503 in words is "twenty-three million, one hundred thirty-three thousand, five hundred three".