12320320003 has 4 divisors (see below), whose sum is σ = 12325829760. Its totient is φ = 12314810248.

The previous prime is 12320319961. The next prime is 12320320027. The reversal of 12320320003 is 30002302321.

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 12320320003 - 2²⁵ = 12286765571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12320320403) 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, 2751523 + ... + 2755996.

It is an arithmetic number, because the mean of its divisors is an integer number (3081457440).

Almost surely, 2^12320320003 is an apocalyptic number.

12320320003 is a deficient number, since it is larger than the sum of its proper divisors (5509757).

12320320003 is an equidigital number, since it uses as much as digits as its factorization.

12320320003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5509756.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 12320320003 its reverse (30002302321), we get a palindrome (42322622324).

The spelling of 12320320003 in words is "twelve billion, three hundred twenty million, three hundred twenty thousand, three".