20321013311022 has 16 divisors (see below), whose sum is σ = 40646208447360. Its totient is φ = 6772974132792.

The previous prime is 20321013310993. The next prime is 20321013311089. The reversal of 20321013311022 is 22011331012302.

It is a self number, because there is not a number n which added to its sum of digits gives 20321013311022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174179548 + ... + 174296175.

It is an arithmetic number, because the mean of its divisors is an integer number (2540388027960).

Almost surely, 2^{20321013311022} is an apocalyptic number.

20321013311022 is an abundant number, since it is smaller than the sum of its proper divisors (20325195136338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20321013311022 is a wasteful number, since it uses less digits than its factorization.

20321013311022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348485447.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20321013311022 its reverse (22011331012302), we get a palindrome (42332344323324).

The spelling of 20321013311022 in words is "twenty trillion, three hundred twenty-one billion, thirteen million, three hundred eleven thousand, twenty-two".