13331312003 has 4 divisors (see below), whose sum is σ = 13910934288. Its totient is φ = 12751689720.

The previous prime is 13331311997. The next prime is 13331312009. The reversal of 13331312003 is 30021313331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30021313331 = 12071 ⋅2487061.

It is an interprime number because it is at equal distance from previous prime (13331311997) and next prime (13331312009).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13331312003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13331312009) 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, 289811108 + ... + 289811153.

It is an arithmetic number, because the mean of its divisors is an integer number (3477733572).

Almost surely, 2^13331312003 is an apocalyptic number.

13331312003 is a deficient number, since it is larger than the sum of its proper divisors (579622285).

13331312003 is an equidigital number, since it uses as much as digits as its factorization.

13331312003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579622284.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 13331312003 its reverse (30021313331), we get a palindrome (43352625334).

The spelling of 13331312003 in words is "thirteen billion, three hundred thirty-one million, three hundred twelve thousand, three".