1323031312 has 40 divisors (see below), whose sum is σ = 2606904576. Its totient is φ = 650322816.

The previous prime is 1323031289. The next prime is 1323031327. The reversal of 1323031312 is 2131303231.

It is a self number, because there is not a number n which added to its sum of digits gives 1323031312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 724833 + ... + 726655.

Almost surely, 2^1323031312 is an apocalyptic number.

It is an amenable number.

1323031312 is a deficient number, since it is larger than the sum of its proper divisors (1283873264).

1323031312 is a wasteful number, since it uses less digits than its factorization.

1323031312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575 (or 2569 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1323031312 is about 36373.4973847718. The cubic root of 1323031312 is about 1097.8003735720.

Adding to 1323031312 its reverse (2131303231), we get a palindrome (3454334543).

The spelling of 1323031312 in words is "one billion, three hundred twenty-three million, thirty-one thousand, three hundred twelve".