20332321111 has 16 divisors (see below), whose sum is σ = 21468430368. Its totient is φ = 19233446400.

The previous prime is 20332321099. The next prime is 20332321117. The reversal of 20332321111 is 11112323302.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20332321111 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 (20332321117) 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, 199441 + ... + 283621.

It is an arithmetic number, because the mean of its divisors is an integer number (1341776898).

Almost surely, 2^20332321111 is an apocalyptic number.

20332321111 is a deficient number, since it is larger than the sum of its proper divisors (1136109257).

20332321111 is a wasteful number, since it uses less digits than its factorization.

20332321111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84402.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20332321111 its reverse (11112323302), we get a palindrome (31444644413).

The spelling of 20332321111 in words is "twenty billion, three hundred thirty-two million, three hundred twenty-one thousand, one hundred eleven".