12603 has 4 divisors (see below), whose sum is σ = 16808. Its totient is φ = 8400.

The previous prime is 12601. The next prime is 12611. The reversal of 12603 is 30621.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12603 - 2¹ = 12601 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 12603.

It is not an unprimeable number, because it can be changed into a prime (12601) 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, 2098 + ... + 2103.

It is an arithmetic number, because the mean of its divisors is an integer number (4202).

2¹²⁶⁰³ is an apocalyptic number.

12603 is a deficient number, since it is larger than the sum of its proper divisors (4205).

12603 is an equidigital number, since it uses as much as digits as its factorization.

12603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4204.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 12603 is about 112.2630838700. The cubic root of 12603 is about 23.2715143670.

The spelling of 12603 in words is "twelve thousand, six hundred three".