12307312 has 10 divisors (see below), whose sum is σ = 23845448. Its totient is φ = 6153648.

The previous prime is 12307301. The next prime is 12307327. The reversal of 12307312 is 21370321.

It is a self number, because there is not a number n which added to its sum of digits gives 12307312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384588 + ... + 384619.

Almost surely, 2^12307312 is an apocalyptic number.

It is an amenable number.

12307312 is a deficient number, since it is larger than the sum of its proper divisors (11538136).

12307312 is an equidigital number, since it uses as much as digits as its factorization.

12307312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769215 (or 769209 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 12307312 is about 3508.1778746238. The cubic root of 12307312 is about 230.8807565321.

Adding to 12307312 its reverse (21370321), we get a palindrome (33677633).

The spelling of 12307312 in words is "twelve million, three hundred seven thousand, three hundred twelve".