1322311312 has 40 divisors (see below), whose sum is σ = 2930120000. Its totient is φ = 566289792.

The previous prime is 1322311307. The next prime is 1322311339. The reversal of 1322311312 is 2131132231.

It is a super-2 number, since 2×1322311312² = 3497014411686322688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1322311312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186814 + ... + 193762.

It is an arithmetic number, because the mean of its divisors is an integer number (73253000).

Almost surely, 2^1322311312 is an apocalyptic number.

It is an amenable number.

1322311312 is an abundant number, since it is smaller than the sum of its proper divisors (1607808688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1322311312 is a wasteful number, since it uses less digits than its factorization.

1322311312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8663 (or 8657 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 1322311312 is about 36363.5987217987. The cubic root of 1322311312 is about 1097.6011946894.

Adding to 1322311312 its reverse (2131132231), we get a palindrome (3453443543).

The spelling of 1322311312 in words is "one billion, three hundred twenty-two million, three hundred eleven thousand, three hundred twelve".