13321312221223 has 4 divisors (see below), whose sum is σ = 13470989886720. Its totient is φ = 13171634555728.

The previous prime is 13321312221197. The next prime is 13321312221241. The reversal of 13321312221223 is 32212221312331.

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 13321312221223 - 2²⁵ = 13321278666791 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13321312221191 and 13321312221200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321312221253) 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, 74838832615 + ... + 74838832792.

It is an arithmetic number, because the mean of its divisors is an integer number (3367747471680).

Almost surely, 2^{13321312221223} is an apocalyptic number.

13321312221223 is a deficient number, since it is larger than the sum of its proper divisors (149677665497).

13321312221223 is an equidigital number, since it uses as much as digits as its factorization.

13321312221223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149677665496.

The product of its digits is 5184, while the sum is 28.

Adding to 13321312221223 its reverse (32212221312331), we get a palindrome (45533533533554).

The spelling of 13321312221223 in words is "thirteen trillion, three hundred twenty-one billion, three hundred twelve million, two hundred twenty-one thousand, two hundred twenty-three".