23000503 has 4 divisors (see below), whose sum is σ = 23010480. Its totient is φ = 22990528.

The previous prime is 23000491. The next prime is 23000513. The reversal of 23000503 is 30500032.

23000503 is nontrivially palindromic in base 12.

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 not a de Polignac number, because 23000503 - 2¹³ = 22992311 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 (23000513) 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, 438 + ... + 6796.

It is an arithmetic number, because the mean of its divisors is an integer number (5752620).

Almost surely, 2^23000503 is an apocalyptic number.

23000503 is a deficient number, since it is larger than the sum of its proper divisors (9977).

23000503 is an equidigital number, since it uses as much as digits as its factorization.

23000503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9976.

The product of its (nonzero) digits is 90, while the sum is 13.

The square root of 23000503 is about 4795.8839644011. The cubic root of 23000503 is about 284.3887711079.

Adding to 23000503 its reverse (30500032), we get a palindrome (53500535).

It can be divided in two parts, 2 and 3000503, that multiplied together give a palindrome (6001006).

The spelling of 23000503 in words is "twenty-three million, five hundred three", and thus it is an aban number.