321032421444 has 96 divisors (see below), whose sum is σ = 877554155520. Its totient is φ = 89437963392.

The previous prime is 321032421439. The next prime is 321032421499. The reversal of 321032421444 is 444124230123.

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, 910869 + ... + 1213155.

It is an arithmetic number, because the mean of its divisors is an integer number (9141189120).

Almost surely, 2^321032421444 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 321032421444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438777077760).

321032421444 is an abundant number, since it is smaller than the sum of its proper divisors (556521734076).

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

321032421444 is a wasteful number, since it uses less digits than its factorization.

321032421444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302617 (or 302615 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 321032421444 its reverse (444124230123), we get a palindrome (765156651567).

The spelling of 321032421444 in words is "three hundred twenty-one billion, thirty-two million, four hundred twenty-one thousand, four hundred forty-four".