13000311003 has 4 divisors (see below), whose sum is σ = 17333748008. Its totient is φ = 8666874000.

The previous prime is 13000310977. The next prime is 13000311013. The reversal of 13000311003 is 30011300031.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13000311003 - 2⁵ = 13000310971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13000311003.

It is not an unprimeable number, because it can be changed into a prime (13000311013) 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, 2166718498 + ... + 2166718503.

It is an arithmetic number, because the mean of its divisors is an integer number (4333437002).

Almost surely, 2^13000311003 is an apocalyptic number.

13000311003 is a deficient number, since it is larger than the sum of its proper divisors (4333437005).

13000311003 is an equidigital number, since it uses as much as digits as its factorization.

13000311003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4333437004.

The product of its (nonzero) digits is 27, while the sum is 12.

Adding to 13000311003 its reverse (30011300031), we get a palindrome (43011611034).

The spelling of 13000311003 in words is "thirteen billion, three hundred eleven thousand, three".