12317603 has 4 divisors (see below), whose sum is σ = 12414720. Its totient is φ = 12220488.

The previous prime is 12317597. The next prime is 12317623. The reversal of 12317603 is 30671321.

It is a happy number.

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 12317603 - 2⁴ = 12317587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12317623) 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, 48368 + ... + 48621.

It is an arithmetic number, because the mean of its divisors is an integer number (3103680).

Almost surely, 2^12317603 is an apocalyptic number.

12317603 is a deficient number, since it is larger than the sum of its proper divisors (97117).

12317603 is an equidigital number, since it uses as much as digits as its factorization.

12317603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97116.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 12317603 is about 3509.6442839695. The cubic root of 12317603 is about 230.9450904264.

Adding to 12317603 its reverse (30671321), we get a palindrome (42988924).

The spelling of 12317603 in words is "twelve million, three hundred seventeen thousand, six hundred three".