13112223 has 16 divisors (see below), whose sum is σ = 18480000. Its totient is φ = 8246880.

The previous prime is 13112221. The next prime is 13112233. The reversal of 13112223 is 32221131.

13112223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13112223 - 2¹ = 13112221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13112221) 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, 26028 + ... + 26526.

It is an arithmetic number, because the mean of its divisors is an integer number (1155000).

Almost surely, 2^13112223 is an apocalyptic number.

13112223 is a deficient number, since it is larger than the sum of its proper divisors (5367777).

13112223 is a wasteful number, since it uses less digits than its factorization.

13112223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982.

The product of its digits is 72, while the sum is 15.

The square root of 13112223 is about 3621.0803636484. The cubic root of 13112223 is about 235.8081307028.

Adding to 13112223 its reverse (32221131), we get a palindrome (45333354).

The spelling of 13112223 in words is "thirteen million, one hundred twelve thousand, two hundred twenty-three".