321321312233 has 4 divisors (see below), whose sum is σ = 321408136068. Its totient is φ = 321234488400.

The previous prime is 321321312217. The next prime is 321321312293. The reversal of 321321312233 is 332213123123.

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 151377021184 + 169944291049 = 389072^2 + 412243^2 .

It is a cyclic number.

It is not a de Polignac number, because 321321312233 - 2⁴ = 321321312217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (321321312293) 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, 43406366 + ... + 43413767.

It is an arithmetic number, because the mean of its divisors is an integer number (80352034017).

Almost surely, 2^321321312233 is an apocalyptic number.

It is an amenable number.

321321312233 is a deficient number, since it is larger than the sum of its proper divisors (86823835).

321321312233 is an equidigital number, since it uses as much as digits as its factorization.

321321312233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86823834.

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

Adding to 321321312233 its reverse (332213123123), we get a palindrome (653534435356).

The spelling of 321321312233 in words is "three hundred twenty-one billion, three hundred twenty-one million, three hundred twelve thousand, two hundred thirty-three".