320021213333121 has 12 divisors (see below), whose sum is σ = 462254022517248. Its totient is φ = 213346940718264.

The previous prime is 320021213333089. The next prime is 320021213333287. The reversal of 320021213333121 is 121333312120023.

320021213333121 is a `hidden beast` number, since 3 + 2 + 0 + 0 + 2 + 12 + 1 + 333 + 312 + 1 = 666.

It is not a de Polignac number, because 320021213333121 - 2⁵ = 320021213333089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320021213331121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40763085 + ... + 47975738.

It is an arithmetic number, because the mean of its divisors is an integer number (38521168543104).

Almost surely, 2^{320021213333121} is an apocalyptic number.

It is an amenable number.

320021213333121 is a deficient number, since it is larger than the sum of its proper divisors (142232809184127).

320021213333121 is a wasteful number, since it uses less digits than its factorization.

320021213333121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89139532 (or 89139529 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 320021213333121 its reverse (121333312120023), we get a palindrome (441354525453144).

The spelling of 320021213333121 in words is "three hundred twenty trillion, twenty-one billion, two hundred thirteen million, three hundred thirty-three thousand, one hundred twenty-one".