13320320323 has 4 divisors (see below), whose sum is σ = 13368408400. Its totient is φ = 13272232248.

The previous prime is 13320320297. The next prime is 13320320341. The reversal of 13320320323 is 32302302331.

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-13320320323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13320320294 and 13320320303.

It is not an unprimeable number, because it can be changed into a prime (13320320623) 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, 24043623 + ... + 24044176.

It is an arithmetic number, because the mean of its divisors is an integer number (3342102100).

Almost surely, 2^13320320323 is an apocalyptic number.

13320320323 is a deficient number, since it is larger than the sum of its proper divisors (48088077).

13320320323 is an equidigital number, since it uses as much as digits as its factorization.

13320320323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48088076.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 13320320323 its reverse (32302302331), we get a palindrome (45622622654).

The spelling of 13320320323 in words is "thirteen billion, three hundred twenty million, three hundred twenty thousand, three hundred twenty-three".