13443520330323 has 12 divisors (see below), whose sum is σ = 19708245393928. Its totient is φ = 8828580515040.

The previous prime is 13443520330313. The next prime is 13443520330363. The reversal of 13443520330323 is 32303302534431.

13443520330323 is a `hidden beast` number, since 1 + 3 + 443 + 5 + 203 + 3 + 0 + 3 + 2 + 3 = 666.

It is not a de Polignac number, because 13443520330323 - 2⁴ = 13443520330307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13443520330313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11147197018 + ... + 11147198223.

Almost surely, 2^{13443520330323} is an apocalyptic number.

13443520330323 is a deficient number, since it is larger than the sum of its proper divisors (6264725063605).

13443520330323 is a wasteful number, since it uses less digits than its factorization.

13443520330323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22294395314 (or 22294395311 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 36.

Adding to 13443520330323 its reverse (32303302534431), we get a palindrome (45746822864754).

The spelling of 13443520330323 in words is "thirteen trillion, four hundred forty-three billion, five hundred twenty million, three hundred thirty thousand, three hundred twenty-three".