323321323220 has 192 divisors, whose sum is σ = 804096792576. Its totient is φ = 106906867200.

The previous prime is 323321323211. The next prime is 323321323249. The reversal of 323321323220 is 22323123323.

It is a super-2 number, since 2×323321323220² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 323321323220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 390956447 + ... + 390957273.

It is an arithmetic number, because the mean of its divisors is an integer number (4188004128).

Almost surely, 2^323321323220 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 323321323220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402048396288).

323321323220 is an abundant number, since it is smaller than the sum of its proper divisors (480775469356).

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

323321323220 is a wasteful number, since it uses less digits than its factorization.

323321323220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630 (or 1628 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 323321323220 its reverse (22323123323), we get a palindrome (345644446543).

The spelling of 323321323220 in words is "three hundred twenty-three billion, three hundred twenty-one million, three hundred twenty-three thousand, two hundred twenty".