321031012022320 has 20 divisors (see below), whose sum is σ = 746397102952080. Its totient is φ = 128412404808896.

The previous prime is 321031012022291. The next prime is 321031012022377. The reversal of 321031012022320 is 23220210130123.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 321031012022291 and 321031012022300.

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, 2006443825060 + ... + 2006443825219.

It is an arithmetic number, because the mean of its divisors is an integer number (37319855147604).

Almost surely, 2^{321031012022320} is an apocalyptic number.

It is an amenable number.

321031012022320 is an abundant number, since it is smaller than the sum of its proper divisors (425366090929760).

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

321031012022320 is a wasteful number, since it uses less digits than its factorization.

321031012022320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4012887650292 (or 4012887650286 counting only the distinct ones).

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

Adding to 321031012022320 its reverse (23220210130123), we get a palindrome (344251222152443).

The spelling of 321031012022320 in words is "three hundred twenty-one trillion, thirty-one billion, twelve million, twenty-two thousand, three hundred twenty".