323220000121020 has 144 divisors (see below), whose sum is σ = 985068111736800. Its totient is φ = 85785563136000.

The previous prime is 323220000120989. The next prime is 323220000121033. The reversal of 323220000121020 is 20121000022323.

323220000121020 is a `hidden beast` number, since 3 + 232 + 200 + 0 + 0 + 1 + 210 + 20 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 323220000120984 and 323220000121002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27422215 + ... + 37395425.

It is an arithmetic number, because the mean of its divisors is an integer number (6840750775950).

Almost surely, 2^{323220000121020} is an apocalyptic number.

323220000121020 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 323220000121020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492534055868400).

323220000121020 is an abundant number, since it is smaller than the sum of its proper divisors (661848111615780).

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

323220000121020 is a wasteful number, since it uses less digits than its factorization.

323220000121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9974076 (or 9974071 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 323220000121020 its reverse (20121000022323), we get a palindrome (343341000143343).

The spelling of 323220000121020 in words is "three hundred twenty-three trillion, two hundred twenty billion, one hundred twenty-one thousand, twenty".