321213141200020 has 24 divisors (see below), whose sum is σ = 684615471097824. Its totient is φ = 126567566084256.

The previous prime is 321213141199999. The next prime is 321213141200167. The reversal of 321213141200020 is 20002141312123.

It is a junction number, because it is equal to n+sod(n) for n = 321213141199964 and 321213141200000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119855648362 + ... + 119855651041.

It is an arithmetic number, because the mean of its divisors is an integer number (28525644629076).

Almost surely, 2^{321213141200020} is an apocalyptic number.

It is an amenable number.

321213141200020 is an abundant number, since it is smaller than the sum of its proper divisors (363402329897804).

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

321213141200020 is a wasteful number, since it uses less digits than its factorization.

321213141200020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239711299479 (or 239711299477 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 321213141200020 its reverse (20002141312123), we get a palindrome (341215282512143).

The spelling of 321213141200020 in words is "three hundred twenty-one trillion, two hundred thirteen billion, one hundred forty-one million, two hundred thousand, twenty".