23603 has 2 divisors, whose sum is σ = 23604. Its totient is φ = 23602.

The previous prime is 23599. The next prime is 23609. The reversal of 23603 is 30632.

23603 is an esthetic number in base 3, because in such base its adjacent digits differ by 1.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23603 - 2² = 23599 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 12.

It is a nialpdrome in base 13.

It is not a weakly prime, because it can be changed into another prime (23609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11801 + 11802.

It is an arithmetic number, because the mean of its divisors is an integer number (11802).

2²³⁶⁰³ is an apocalyptic number.

23603 is a deficient number, since it is larger than the sum of its proper divisors (1).

23603 is an equidigital number, since it uses as much as digits as its factorization.

23603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 23603 is about 153.6326788154. The cubic root of 23603 is about 28.6850582059.

It can be divided in two parts, 23 and 603, that added together give a palindrome (626).

The spelling of 23603 in words is "twenty-three thousand, six hundred three".