323020221000021 has 24 divisors (see below), whose sum is σ = 491143179983040. Its totient is φ = 204012221400000.

The previous prime is 323020221000011. The next prime is 323020221000073. The reversal of 323020221000021 is 120000122020323.

323020221000021 is a `hidden beast` number, since 3 + 230 + 202 + 210 + 0 + 0 + 0 + 21 = 666.

It is not a de Polignac number, because 323020221000021 - 2¹³ = 323020220991829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 323020220999958 and 323020221000003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323020221000011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66569496 + ... + 71256846.

It is an arithmetic number, because the mean of its divisors is an integer number (20464299165960).

Almost surely, 2^{323020221000021} is an apocalyptic number.

It is an amenable number.

323020221000021 is a deficient number, since it is larger than the sum of its proper divisors (168122958983019).

323020221000021 is a wasteful number, since it uses less digits than its factorization.

323020221000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5090377 (or 5090374 counting only the distinct ones).

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

Adding to 323020221000021 its reverse (120000122020323), we get a palindrome (443020343020344).

The spelling of 323020221000021 in words is "three hundred twenty-three trillion, twenty billion, two hundred twenty-one million, twenty-one", and thus it is an aban number.