321012333331321 has 16 divisors (see below), whose sum is σ = 338634524891520. Its totient is φ = 303705436573440.

The previous prime is 321012333331279. The next prime is 321012333331337. The reversal of 321012333331321 is 123133333210123.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 321012333331321 - 2⁹ = 321012333330809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321012334331321) 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 15 ways as a sum of consecutive naturals, for example, 110693200 + ... + 113556193.

It is an arithmetic number, because the mean of its divisors is an integer number (21164657805720).

Almost surely, 2^{321012333331321} is an apocalyptic number.

It is an amenable number.

321012333331321 is a deficient number, since it is larger than the sum of its proper divisors (17622191560199).

321012333331321 is a wasteful number, since it uses less digits than its factorization.

321012333331321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224250096.

The product of its (nonzero) digits is 17496, while the sum is 31.

Adding to 321012333331321 its reverse (123133333210123), we get a palindrome (444145666541444).

The spelling of 321012333331321 in words is "three hundred twenty-one trillion, twelve billion, three hundred thirty-three million, three hundred thirty-one thousand, three hundred twenty-one".