20322311189 has 2 divisors, whose sum is σ = 20322311190. Its totient is φ = 20322311188.

The previous prime is 20322311171. The next prime is 20322311239. The reversal of 20322311189 is 98111322302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20200936900 + 121374289 = 142130^2 + 11017^2 .

It is a cyclic number.

It is not a de Polignac number, because 20322311189 - 2²⁴ = 20305533973 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20322311489) 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 as a sum of consecutive naturals, namely, 10161155594 + 10161155595.

It is an arithmetic number, because the mean of its divisors is an integer number (10161155595).

Almost surely, 2^20322311189 is an apocalyptic number.

It is an amenable number.

20322311189 is a deficient number, since it is larger than the sum of its proper divisors (1).

20322311189 is an equidigital number, since it uses as much as digits as its factorization.

20322311189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

It can be divided in two parts, 203223 and 11189, that added together give a palindrome (214412).

The spelling of 20322311189 in words is "twenty billion, three hundred twenty-two million, three hundred eleven thousand, one hundred eighty-nine".