321012304323021 has 24 divisors (see below), whose sum is σ = 464249671966080. Its totient is φ = 213747482592000.

The previous prime is 321012304323001. The next prime is 321012304323059. The reversal of 321012304323021 is 120323403210123.

321012304323021 is a `hidden beast` number, since 3 + 2 + 1 + 0 + 12 + 304 + 323 + 0 + 21 = 666.

It is not a de Polignac number, because 321012304323021 - 2¹¹ = 321012304320973 is a prime.

It is a super-2 number, since 2×321012304323021² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321012304323001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18161916 + ... + 31174986.

It is an arithmetic number, because the mean of its divisors is an integer number (19343736331920).

Almost surely, 2^{321012304323021} is an apocalyptic number.

It is an amenable number.

321012304323021 is a deficient number, since it is larger than the sum of its proper divisors (143237367643059).

321012304323021 is a wasteful number, since it uses less digits than its factorization.

321012304323021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13016417 (or 13016414 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 321012304323021 its reverse (120323403210123), we get a palindrome (441335707533144).

The spelling of 321012304323021 in words is "three hundred twenty-one trillion, twelve billion, three hundred four million, three hundred twenty-three thousand, twenty-one".