323220121111 has 4 divisors (see below), whose sum is σ = 324386981032. Its totient is φ = 322053261192.

The previous prime is 323220121087. The next prime is 323220121121. The reversal of 323220121111 is 111121022323.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 323220121111 - 2⁵ = 323220121079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323220121121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583429545 + ... + 583430098.

It is an arithmetic number, because the mean of its divisors is an integer number (81096745258).

Almost surely, 2^323220121111 is an apocalyptic number.

323220121111 is a deficient number, since it is larger than the sum of its proper divisors (1166859921).

323220121111 is a wasteful number, since it uses less digits than its factorization.

323220121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1166859920.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 323220121111 its reverse (111121022323), we get a palindrome (434341143434).

The spelling of 323220121111 in words is "three hundred twenty-three billion, two hundred twenty million, one hundred twenty-one thousand, one hundred eleven".