321022340121320 has 128 divisors (see below), whose sum is σ = 765465230851200. Its totient is φ = 120748554387456.

The previous prime is 321022340121311. The next prime is 321022340121359. The reversal of 321022340121320 is 23121043220123.

It is a self number, because there is not a number n which added to its sum of digits gives 321022340121320.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10068746099 + ... + 10068777981.

It is an arithmetic number, because the mean of its divisors is an integer number (5980197116025).

Almost surely, 2^{321022340121320} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321022340121320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382732615425600).

321022340121320 is an abundant number, since it is smaller than the sum of its proper divisors (444442890729880).

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

321022340121320 is a wasteful number, since it uses less digits than its factorization.

321022340121320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44547 (or 44543 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 321022340121320 its reverse (23121043220123), we get a palindrome (344143383341443).

The spelling of 321022340121320 in words is "three hundred twenty-one trillion, twenty-two billion, three hundred forty million, one hundred twenty-one thousand, three hundred twenty".