12318003 has 24 divisors (see below), whose sum is σ = 18566496. Its totient is φ = 7862400.

The previous prime is 12317993. The next prime is 12318043. The reversal of 12318003 is 30081321.

It is not a de Polignac number, because 12318003 - 2⁵ = 12317971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12318043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23383 + ... + 23903.

It is an arithmetic number, because the mean of its divisors is an integer number (773604).

Almost surely, 2^12318003 is an apocalyptic number.

12318003 is a deficient number, since it is larger than the sum of its proper divisors (6248493).

12318003 is a wasteful number, since it uses less digits than its factorization.

12318003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 12318003 is about 3509.7012693390. The cubic root of 12318003 is about 230.9475902915.

Adding to 12318003 its reverse (30081321), we get a palindrome (42399324).

The spelling of 12318003 in words is "twelve million, three hundred eighteen thousand, three".