322321320000 has 420 divisors, whose sum is σ = 1215262928880. Its totient is φ = 81426816000.

The previous prime is 322321319939. The next prime is 322321320031. The reversal of 322321320000 is 23123223.

It is a happy number.

322321320000 is a `hidden beast` number, since 3 + 22 + 321 + 320 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 6816439 + ... + 6863561.

It is an arithmetic number, because the mean of its divisors is an integer number (2893483164).

Almost surely, 2^322321320000 is an apocalyptic number.

322321320000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 322321320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (607631464440).

322321320000 is an abundant number, since it is smaller than the sum of its proper divisors (892941608880).

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

322321320000 is a wasteful number, since it uses less digits than its factorization.

322321320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47180 (or 47152 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 322321320000 its reverse (23123223), we get a palindrome (322344443223).

The spelling of 322321320000 in words is "three hundred twenty-two billion, three hundred twenty-one million, three hundred twenty thousand".