1322321312 has 48 divisors (see below), whose sum is σ = 2863268352. Its totient is φ = 597308160.

The previous prime is 1322321311. The next prime is 1322321411. The reversal of 1322321312 is 2131232231.

It is not an unprimeable number, because it can be changed into a prime (1322321311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14264 + ... + 53367.

It is an arithmetic number, because the mean of its divisors is an integer number (59651424).

Almost surely, 2^1322321312 is an apocalyptic number.

It is an amenable number.

1322321312 is an abundant number, since it is smaller than the sum of its proper divisors (1540947040).

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

1322321312 is a wasteful number, since it uses less digits than its factorization.

1322321312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67701 (or 67693 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 1322321312 is about 36363.7362216811. The cubic root of 1322321312 is about 1097.6039615578.

Adding to 1322321312 its reverse (2131232231), we get a palindrome (3453553543).

The spelling of 1322321312 in words is "one billion, three hundred twenty-two million, three hundred twenty-one thousand, three hundred twelve".