12113223 has 4 divisors (see below), whose sum is σ = 16150968. Its totient is φ = 8075480.

The previous prime is 12113221. The next prime is 12113251. The reversal of 12113223 is 32231121.

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 12113223 - 2¹ = 12113221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2018868 + ... + 2018873.

It is an arithmetic number, because the mean of its divisors is an integer number (4037742).

Almost surely, 2^12113223 is an apocalyptic number.

12113223 is a deficient number, since it is larger than the sum of its proper divisors (4037745).

12113223 is an equidigital number, since it uses as much as digits as its factorization.

12113223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037744.

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

The square root of 12113223 is about 3480.4055798139. The cubic root of 12113223 is about 229.6606400448.

Adding to 12113223 its reverse (32231121), we get a palindrome (44344344).

The spelling of 12113223 in words is "twelve million, one hundred thirteen thousand, two hundred twenty-three".