321231011223 has 16 divisors (see below), whose sum is σ = 432040089600. Its totient is φ = 212293687584.

The previous prime is 321231011197. The next prime is 321231011239. The reversal of 321231011223 is 322110132123.

It is not a de Polignac number, because 321231011223 - 2⁶ = 321231011159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321231011223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321231011293) 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, 489511 + ... + 939192.

It is an arithmetic number, because the mean of its divisors is an integer number (27002505600).

Almost surely, 2^321231011223 is an apocalyptic number.

321231011223 is a deficient number, since it is larger than the sum of its proper divisors (110809078377).

321231011223 is a wasteful number, since it uses less digits than its factorization.

321231011223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429358.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 321231011223 its reverse (322110132123), we get a palindrome (643341143346).

The spelling of 321231011223 in words is "three hundred twenty-one billion, two hundred thirty-one million, eleven thousand, two hundred twenty-three".