12243223 has 4 divisors (see below), whose sum is σ = 12291120. Its totient is φ = 12195328.

The previous prime is 12243221. The next prime is 12243227. The reversal of 12243223 is 32234221.

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 12243223 - 2¹ = 12243221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12243223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12243221) 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, 23563 + ... + 24076.

It is an arithmetic number, because the mean of its divisors is an integer number (3072780).

Almost surely, 2^12243223 is an apocalyptic number.

12243223 is a deficient number, since it is larger than the sum of its proper divisors (47897).

12243223 is an equidigital number, since it uses as much as digits as its factorization.

12243223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47896.

The product of its digits is 576, while the sum is 19.

The square root of 12243223 is about 3499.0317232057. The cubic root of 12243223 is about 230.4792966569.

Adding to 12243223 its reverse (32234221), we get a palindrome (44477444).

The spelling of 12243223 in words is "twelve million, two hundred forty-three thousand, two hundred twenty-three".