13321223 has 4 divisors (see below), whose sum is σ = 14022360. Its totient is φ = 12620088.

The previous prime is 13321219. The next prime is 13321229. The reversal of 13321223 is 32212331.

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 13321223 - 2² = 13321219 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 (13321229) 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, 350540 + ... + 350577.

It is an arithmetic number, because the mean of its divisors is an integer number (3505590).

Almost surely, 2^13321223 is an apocalyptic number.

13321223 is a deficient number, since it is larger than the sum of its proper divisors (701137).

13321223 is an equidigital number, since it uses as much as digits as its factorization.

13321223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701136.

The product of its digits is 216, while the sum is 17.

The square root of 13321223 is about 3649.8250643010. The cubic root of 13321223 is about 237.0544066135.

Adding to 13321223 its reverse (32212331), we get a palindrome (45533554).

The spelling of 13321223 in words is "thirteen million, three hundred twenty-one thousand, two hundred twenty-three".