321330223000 has 128 divisors (see below), whose sum is σ = 793593216000. Its totient is φ = 121443235200.

The previous prime is 321330222979. The next prime is 321330223007. The reversal of 321330223000 is 322033123.

It is a happy number.

It is a super-2 number, since 2×321330223000² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321330223007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7178689 + ... + 7223311.

It is an arithmetic number, because the mean of its divisors is an integer number (6199947000).

Almost surely, 2^321330223000 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 321330223000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (396796608000).

321330223000 is an abundant number, since it is smaller than the sum of its proper divisors (472262993000).

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

321330223000 is a wasteful number, since it uses less digits than its factorization.

321330223000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45042 (or 45028 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 321330223000 its reverse (322033123), we get a palindrome (321652256123).

The spelling of 321330223000 in words is "three hundred twenty-one billion, three hundred thirty million, two hundred twenty-three thousand".