12230312 has 8 divisors (see below), whose sum is σ = 22931850. Its totient is φ = 6115152.

The previous prime is 12230233. The next prime is 12230353. The reversal of 12230312 is 21303221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12013156 + 217156 = 3466^2 + 466^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 764387 + ... + 764402.

Almost surely, 2^12230312 is an apocalyptic number.

It is an amenable number.

12230312 is a deficient number, since it is larger than the sum of its proper divisors (10701538).

12230312 is a wasteful number, since it uses less digits than its factorization.

12230312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528795 (or 1528791 counting only the distinct ones).

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

The square root of 12230312 is about 3497.1862975827. The cubic root of 12230312 is about 230.3982514174.

Adding to 12230312 its reverse (21303221), we get a palindrome (33533533).

The spelling of 12230312 in words is "twelve million, two hundred thirty thousand, three hundred twelve".