321104420224 has 128 divisors (see below), whose sum is σ = 765012142080. Its totient is φ = 131351777280.

The previous prime is 321104420209. The next prime is 321104420237. The reversal of 321104420224 is 422024401123.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1948467 + ... + 2106829.

It is an arithmetic number, because the mean of its divisors is an integer number (5976657360).

Almost surely, 2^321104420224 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 321104420224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382506071040).

321104420224 is an abundant number, since it is smaller than the sum of its proper divisors (443907721856).

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

321104420224 is a wasteful number, since it uses less digits than its factorization.

321104420224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158488 (or 158476 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 321104420224 its reverse (422024401123), we get a palindrome (743128821347).

The spelling of 321104420224 in words is "three hundred twenty-one billion, one hundred four million, four hundred twenty thousand, two hundred twenty-four".