20322320111 has 12 divisors (see below), whose sum is σ = 21201004032. Its totient is φ = 19478217024.

The previous prime is 20322320107. The next prime is 20322320119. The reversal of 20322320111 is 11102322302.

It is not a de Polignac number, because 20322320111 - 2² = 20322320107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20322320111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322320119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27026 + ... + 203408.

It is an arithmetic number, because the mean of its divisors is an integer number (1766750336).

Almost surely, 2^20322320111 is an apocalyptic number.

20322320111 is a deficient number, since it is larger than the sum of its proper divisors (878683921).

20322320111 is a wasteful number, since it uses less digits than its factorization.

20322320111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176578 (or 176549 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20322320111 its reverse (11102322302), we get a palindrome (31424642413).

The spelling of 20322320111 in words is "twenty billion, three hundred twenty-two million, three hundred twenty thousand, one hundred eleven".