13309998223 has 4 divisors (see below), whose sum is σ = 13634632368. Its totient is φ = 12985364080.

The previous prime is 13309998217. The next prime is 13309998257. The reversal of 13309998223 is 32289990331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32289990331 = 191 ⋅169057541.

It is a cyclic number.

It is not a de Polignac number, because 13309998223 - 2⁹ = 13309997711 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 (13309998283) 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, 162317011 + ... + 162317092.

It is an arithmetic number, because the mean of its divisors is an integer number (3408658092).

Almost surely, 2^13309998223 is an apocalyptic number.

13309998223 is a deficient number, since it is larger than the sum of its proper divisors (324634145).

13309998223 is an equidigital number, since it uses as much as digits as its factorization.

13309998223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324634144.

The product of its (nonzero) digits is 629856, while the sum is 49.

The spelling of 13309998223 in words is "thirteen billion, three hundred nine million, nine hundred ninety-eight thousand, two hundred twenty-three".