323220332032 has 80 divisors (see below), whose sum is σ = 704291797440. Its totient is φ = 147290038272.

The previous prime is 323220332011. The next prime is 323220332051. The reversal of 323220332032 is 230233022323.

It is a junction number, because it is equal to n+sod(n) for n = 323220331988 and 323220332006.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 218478 + ... + 833170.

It is an arithmetic number, because the mean of its divisors is an integer number (8803647468).

Almost surely, 2^323220332032 is an apocalyptic number.

323220332032 is a gapful number since it is divisible by the number (32) 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 323220332032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (352145898720).

323220332032 is an abundant number, since it is smaller than the sum of its proper divisors (381071465408).

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

323220332032 is an equidigital number, since it uses as much as digits as its factorization.

323220332032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614803 (or 614787 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 25.

Adding to 323220332032 its reverse (230233022323), we get a palindrome (553453354355).

The spelling of 323220332032 in words is "three hundred twenty-three billion, two hundred twenty million, three hundred thirty-two thousand, thirty-two".