12321003 has 8 divisors (see below), whose sum is σ = 16777728. Its totient is φ = 8039144.

The previous prime is 12320999. The next prime is 12321011. The reversal of 12321003 is 30012321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12321003 - 2² = 12320999 is a prime.

It is a super-2 number, since 2×12321003² = 303614229852018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12321003.

It is not an unprimeable number, because it can be changed into a prime (12321053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43551 + ... + 43832.

It is an arithmetic number, because the mean of its divisors is an integer number (2097216).

Almost surely, 2^12321003 is an apocalyptic number.

12321003 is a deficient number, since it is larger than the sum of its proper divisors (4456725).

12321003 is an equidigital number, since it uses as much as digits as its factorization.

12321003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87433.

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

The square root of 12321003 is about 3510.1286301217. The cubic root of 12321003 is about 230.9663375546.

Adding to 12321003 its reverse (30012321), we get a palindrome (42333324).

The spelling of 12321003 in words is "twelve million, three hundred twenty-one thousand, three".