12803603 has 4 divisors (see below), whose sum is σ = 13115928. Its totient is φ = 12491280.

The previous prime is 12803569. The next prime is 12803611. The reversal of 12803603 is 30630821.

12803603 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12803603 - 2⁸ = 12803347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12803653) 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, 156101 + ... + 156182.

It is an arithmetic number, because the mean of its divisors is an integer number (3278982).

Almost surely, 2^12803603 is an apocalyptic number.

12803603 is a deficient number, since it is larger than the sum of its proper divisors (312325).

12803603 is an equidigital number, since it uses as much as digits as its factorization.

12803603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312324.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 12803603 is about 3578.2122631281. The cubic root of 12803603 is about 233.9433654061.

The spelling of 12803603 in words is "twelve million, eight hundred three thousand, six hundred three".