321232231321 has 4 divisors (see below), whose sum is σ = 321268048144. Its totient is φ = 321196414500.

The previous prime is 321232231303. The next prime is 321232231337. The reversal of 321232231321 is 123132232123.

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 321232231321 - 2⁷ = 321232231193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321232231391) 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 3 ways as a sum of consecutive naturals, for example, 17894955 + ... + 17912896.

It is an arithmetic number, because the mean of its divisors is an integer number (80317012036).

Almost surely, 2^321232231321 is an apocalyptic number.

It is an amenable number.

321232231321 is a deficient number, since it is larger than the sum of its proper divisors (35816823).

321232231321 is an equidigital number, since it uses as much as digits as its factorization.

321232231321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35816822.

The product of its digits is 2592, while the sum is 25.

Adding to 321232231321 its reverse (123132232123), we get a palindrome (444364463444).

The spelling of 321232231321 in words is "three hundred twenty-one billion, two hundred thirty-two million, two hundred thirty-one thousand, three hundred twenty-one".