13320023403 has 16 divisors (see below), whose sum is σ = 17871287936. Its totient is φ = 8824515840.

The previous prime is 13320023393. The next prime is 13320023411. The reversal of 13320023403 is 30432002331.

It is not a de Polignac number, because 13320023403 - 2²² = 13315829099 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 13320023403.

It is not an unprimeable number, because it can be changed into a prime (13320023443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410376 + ... + 441642.

It is an arithmetic number, because the mean of its divisors is an integer number (1116955496).

Almost surely, 2^13320023403 is an apocalyptic number.

13320023403 is a deficient number, since it is larger than the sum of its proper divisors (4551264533).

13320023403 is a wasteful number, since it uses less digits than its factorization.

13320023403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32154.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 13320023403 its reverse (30432002331), we get a palindrome (43752025734).

The spelling of 13320023403 in words is "thirteen billion, three hundred twenty million, twenty-three thousand, four hundred three".