323211020000000 has 288 divisors, whose sum is σ = 879761297024064. Its totient is φ = 117531200000000.

The previous prime is 323211019999843. The next prime is 323211020000041. The reversal of 323211020000000 is 20112323.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 323211020000000.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219265430 + ... + 220734570.

It is an arithmetic number, because the mean of its divisors is an integer number (3054726725778).

Almost surely, 2^{323211020000000} 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 323211020000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (439880648512032).

323211020000000 is an abundant number, since it is smaller than the sum of its proper divisors (556550277024064).

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

323211020000000 is an frugal number, since it uses more digits than its factorization.

323211020000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469203 (or 1469159 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 323211020000000 its reverse (20112323), we get a palindrome (323211040112323).

The spelling of 323211020000000 in words is "three hundred twenty-three trillion, two hundred eleven billion, twenty million", and thus it is an aban number.