321112121223 has 16 divisors (see below), whose sum is σ = 439991615360. Its totient is φ = 208160806176.

The previous prime is 321112121203. The next prime is 321112121227. The reversal of 321112121223 is 322121211123.

It is not a de Polignac number, because 321112121223 - 2⁶ = 321112121159 is a prime.

It is a super-2 number, since 2×321112121223² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321112121223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321112121227) 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, 708433 + ... + 1069626.

It is an arithmetic number, because the mean of its divisors is an integer number (27499475960).

Almost surely, 2^321112121223 is an apocalyptic number.

321112121223 is a deficient number, since it is larger than the sum of its proper divisors (118879494137).

321112121223 is a wasteful number, since it uses less digits than its factorization.

321112121223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779726.

The product of its digits is 288, while the sum is 21.

Adding to 321112121223 its reverse (322121211123), we get a palindrome (643233332346).

The spelling of 321112121223 in words is "three hundred twenty-one billion, one hundred twelve million, one hundred twenty-one thousand, two hundred twenty-three".