322331021312 has 26 divisors (see below), whose sum is σ = 644583356718. Its totient is φ = 161165508608.

The previous prime is 322331021303. The next prime is 322331021317. The reversal of 322331021312 is 213120133223.

It can be written as a sum of positive squares in only one way, i.e., 292049453056 + 30281568256 = 540416^2 + 174016^2 .

It is not an unprimeable number, because it can be changed into a prime (322331021317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39342953 + ... + 39351144.

Almost surely, 2^322331021312 is an apocalyptic number.

322331021312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

322331021312 is a deficient number, since it is larger than the sum of its proper divisors (322252335406).

322331021312 is an frugal number, since it uses more digits than its factorization.

322331021312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78694121 (or 78694099 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 322331021312 its reverse (213120133223), we get a palindrome (535451154535).

The spelling of 322331021312 in words is "three hundred twenty-two billion, three hundred thirty-one million, twenty-one thousand, three hundred twelve".