12031223 has 8 divisors (see below), whose sum is σ = 12853728. Its totient is φ = 11221504.

The previous prime is 12031219. The next prime is 12031247. The reversal of 12031223 is 32213021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12031223 - 2² = 12031219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12031198 and 12031207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1211 + ... + 5052.

It is an arithmetic number, because the mean of its divisors is an integer number (1606716).

Almost surely, 2^12031223 is an apocalyptic number.

12031223 is a deficient number, since it is larger than the sum of its proper divisors (822505).

12031223 is a wasteful number, since it uses less digits than its factorization.

12031223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6393.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12031223 is about 3468.6053393259. The cubic root of 12031223 is about 229.1412399484.

Adding to 12031223 its reverse (32213021), we get a palindrome (44244244).

The spelling of 12031223 in words is "twelve million, thirty-one thousand, two hundred twenty-three".