13320123 has 4 divisors (see below), whose sum is σ = 17760168. Its totient is φ = 8880080.

The previous prime is 13320113. The next prime is 13320157. The reversal of 13320123 is 32102331.

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

It is a cyclic number.

It is not a de Polignac number, because 13320123 - 2⁹ = 13319611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13320103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2220018 + ... + 2220023.

It is an arithmetic number, because the mean of its divisors is an integer number (4440042).

Almost surely, 2^13320123 is an apocalyptic number.

13320123 is a deficient number, since it is larger than the sum of its proper divisors (4440045).

13320123 is an equidigital number, since it uses as much as digits as its factorization.

13320123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4440044.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 13320123 is about 3649.6743690362. The cubic root of 13320123 is about 237.0478815113.

Adding to 13320123 its reverse (32102331), we get a palindrome (45422454).

The spelling of 13320123 in words is "thirteen million, three hundred twenty thousand, one hundred twenty-three".