321442243322140 has 24 divisors (see below), whose sum is σ = 675079784294832. Its totient is φ = 128567169077760.

The previous prime is 321442243322119. The next prime is 321442243322141. The reversal of 321442243322140 is 41223342244123.

It is a self number, because there is not a number n which added to its sum of digits gives 321442243322140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321442243322141) 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, 607744746 + ... + 608273425.

It is an arithmetic number, because the mean of its divisors is an integer number (28128324345618).

Almost surely, 2^{321442243322140} is an apocalyptic number.

It is an amenable number.

321442243322140 is an abundant number, since it is smaller than the sum of its proper divisors (353637540972692).

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

321442243322140 is a wasteful number, since it uses less digits than its factorization.

321442243322140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216031397 (or 1216031395 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 321442243322140 its reverse (41223342244123), we get a palindrome (362665585566263).

The spelling of 321442243322140 in words is "three hundred twenty-one trillion, four hundred forty-two billion, two hundred forty-three million, three hundred twenty-two thousand, one hundred forty".