321223312223231 has 16 divisors (see below), whose sum is σ = 351434905780608. Its totient is φ = 291181108149600.

The previous prime is 321223312223213. The next prime is 321223312223237. The reversal of 321223312223231 is 132322213322123.

It is a cyclic number.

It is not a de Polignac number, because 321223312223231 - 2²⁶ = 321223245114367 is a prime.

It is a super-2 number, since 2×321223312223231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321223312223237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22976540 + ... + 34210641.

It is an arithmetic number, because the mean of its divisors is an integer number (21964681611288).

Almost surely, 2^{321223312223231} is an apocalyptic number.

321223312223231 is a deficient number, since it is larger than the sum of its proper divisors (30211593557377).

321223312223231 is a wasteful number, since it uses less digits than its factorization.

321223312223231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57188662.

The product of its digits is 31104, while the sum is 32.

Adding to 321223312223231 its reverse (132322213322123), we get a palindrome (453545525545354).

The spelling of 321223312223231 in words is "three hundred twenty-one trillion, two hundred twenty-three billion, three hundred twelve million, two hundred twenty-three thousand, two hundred thirty-one".