321321312323 has 32 divisors (see below), whose sum is σ = 370337702400. Its totient is φ = 275720889600.

The previous prime is 321321312293. The next prime is 321321312329. The reversal of 321321312323 is 323213123123.

It is a cyclic number.

It is not a de Polignac number, because 321321312323 - 2¹² = 321321308227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321321312292 and 321321312301.

It is not an unprimeable number, because it can be changed into a prime (321321312329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71102258 + ... + 71106776.

It is an arithmetic number, because the mean of its divisors is an integer number (11573053200).

Almost surely, 2^321321312323 is an apocalyptic number.

321321312323 is a deficient number, since it is larger than the sum of its proper divisors (49016390077).

321321312323 is a wasteful number, since it uses less digits than its factorization.

321321312323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5723.

The product of its digits is 3888, while the sum is 26.

Adding to 321321312323 its reverse (323213123123), we get a palindrome (644534435446).

The spelling of 321321312323 in words is "three hundred twenty-one billion, three hundred twenty-one million, three hundred twelve thousand, three hundred twenty-three".