321113321329 has 4 divisors (see below), whose sum is σ = 321445393984. Its totient is φ = 320781248676.

The previous prime is 321113321213. The next prime is 321113321339. The reversal of 321113321329 is 923123311123.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 321113321329 - 2¹¹ = 321113319281 is a prime.

It is a super-3 number, since 3×321113321329³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321113321329.

It is not an unprimeable number, because it can be changed into a prime (321113321339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166034877 + ... + 166036810.

It is an arithmetic number, because the mean of its divisors is an integer number (80361348496).

Almost surely, 2^321113321329 is an apocalyptic number.

It is an amenable number.

321113321329 is a deficient number, since it is larger than the sum of its proper divisors (332072655).

321113321329 is an equidigital number, since it uses as much as digits as its factorization.

321113321329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332072654.

The product of its digits is 5832, while the sum is 31.

The spelling of 321113321329 in words is "three hundred twenty-one billion, one hundred thirteen million, three hundred twenty-one thousand, three hundred twenty-nine".