323123220000 has 1440 divisors, whose sum is σ = 1400041843200. Its totient is φ = 69092352000.

The previous prime is 323123219983. The next prime is 323123220041. The reversal of 323123220000 is 22321323.

It is a happy number.

323123220000 is a `hidden beast` number, since 3 + 231 + 232 + 200 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

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

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 239 ways as a sum of consecutive naturals, for example, 1351979881 + ... + 1351980119.

It is an arithmetic number, because the mean of its divisors is an integer number (972251280).

Almost surely, 2^323123220000 is an apocalyptic number.

323123220000 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 323123220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (700020921600).

323123220000 is an abundant number, since it is smaller than the sum of its proper divisors (1076918623200).

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

323123220000 is a wasteful number, since it uses less digits than its factorization.

323123220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 322 counting only the distinct ones).

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

Adding to 323123220000 its reverse (22321323), we get a palindrome (323145541323).

The spelling of 323123220000 in words is "three hundred twenty-three billion, one hundred twenty-three million, two hundred twenty thousand".