13013311303 has 4 divisors (see below), whose sum is σ = 13021660080. Its totient is φ = 13004962528.

The previous prime is 13013311291. The next prime is 13013311319. The reversal of 13013311303 is 30311331031.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13013311303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013311373) 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, 4172050 + ... + 4175167.

It is an arithmetic number, because the mean of its divisors is an integer number (3255415020).

Almost surely, 2^13013311303 is an apocalyptic number.

13013311303 is a deficient number, since it is larger than the sum of its proper divisors (8348777).

13013311303 is an equidigital number, since it uses as much as digits as its factorization.

13013311303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8348776.

The product of its (nonzero) digits is 243, while the sum is 19.

Adding to 13013311303 its reverse (30311331031), we get a palindrome (43324642334).

The spelling of 13013311303 in words is "thirteen billion, thirteen million, three hundred eleven thousand, three hundred three".