321330100221133 has 4 divisors (see below), whose sum is σ = 321850894549500. Its totient is φ = 320809305892768.

The previous prime is 321330100221127. The next prime is 321330100221209. The reversal of 321330100221133 is 331122001033123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 136216605988969 + 185113494232164 = 11671187^2 + 13605642^2 .

It is a cyclic number.

It is not a de Polignac number, because 321330100221133 - 2¹³ = 321330100212941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321330100221098 and 321330100221107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321330100201133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260397163258 + ... + 260397164491.

It is an arithmetic number, because the mean of its divisors is an integer number (80462723637375).

Almost surely, 2^{321330100221133} is an apocalyptic number.

It is an amenable number.

321330100221133 is a deficient number, since it is larger than the sum of its proper divisors (520794328367).

321330100221133 is an equidigital number, since it uses as much as digits as its factorization.

321330100221133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520794328366.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 321330100221133 its reverse (331122001033123), we get a palindrome (652452101254256).

The spelling of 321330100221133 in words is "three hundred twenty-one trillion, three hundred thirty billion, one hundred million, two hundred twenty-one thousand, one hundred thirty-three".