1224313312 has 24 divisors (see below), whose sum is σ = 2414683656. Its totient is φ = 611060352.

The previous prime is 1224313301. The next prime is 1224313331. The reversal of 1224313312 is 2133134221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15963 + ... + 51994.

It is an arithmetic number, because the mean of its divisors is an integer number (100611819).

Almost surely, 2^1224313312 is an apocalyptic number.

It is an amenable number.

1224313312 is a deficient number, since it is larger than the sum of its proper divisors (1190370344).

1224313312 is an equidigital number, since it uses as much as digits as its factorization.

1224313312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68530 (or 68522 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 1224313312 is about 34990.1887962897. The cubic root of 1224313312 is about 1069.7875118858.

Adding to 1224313312 its reverse (2133134221), we get a palindrome (3357447533).

The spelling of 1224313312 in words is "one billion, two hundred twenty-four million, three hundred thirteen thousand, three hundred twelve".