20321313022111 has 16 divisors (see below), whose sum is σ = 20919008285280. Its totient is φ = 19732850565120.

The previous prime is 20321313022039. The next prime is 20321313022163. The reversal of 20321313022111 is 11122031312302.

It is not a de Polignac number, because 20321313022111 - 2²⁵ = 20321279467679 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 (20321313022211) 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, 580191 + ... + 6401503.

It is an arithmetic number, because the mean of its divisors is an integer number (1307438017830).

Almost surely, 2^{20321313022111} is an apocalyptic number.

20321313022111 is a deficient number, since it is larger than the sum of its proper divisors (597695263169).

20321313022111 is an equidigital number, since it uses as much as digits as its factorization.

20321313022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5822106.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 20321313022111 its reverse (11122031312302), we get a palindrome (31443344334413).

The spelling of 20321313022111 in words is "twenty trillion, three hundred twenty-one billion, three hundred thirteen million, twenty-two thousand, one hundred eleven".