12312268 has 24 divisors (see below), whose sum is σ = 23097312. Its totient is φ = 5727744.

The previous prime is 12312263. The next prime is 12312277. The reversal of 12312268 is 86221321.

It is not an unprimeable number, because it can be changed into a prime (12312263) 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, 1596 + ... + 5212.

It is an arithmetic number, because the mean of its divisors is an integer number (962388).

Almost surely, 2^12312268 is an apocalyptic number.

It is an amenable number.

12312268 is a deficient number, since it is larger than the sum of its proper divisors (10785044).

12312268 is a wasteful number, since it uses less digits than its factorization.

12312268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3681 (or 3679 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 12312268 is about 3508.8841531176. The cubic root of 12312268 is about 230.9117433003.

Adding to 12312268 its reverse (86221321), we get a palindrome (98533589).

The spelling of 12312268 in words is "twelve million, three hundred twelve thousand, two hundred sixty-eight".