20330112289 has 2 divisors, whose sum is σ = 20330112290. Its totient is φ = 20330112288.

The previous prime is 20330112259. The next prime is 20330112301. The reversal of 20330112289 is 98221103302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16226428689 + 4103683600 = 127383^2 + 64060^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330112289 - 2¹³ = 20330104097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20330112289.

It is not a weakly prime, because it can be changed into another prime (20330112259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165056144 + 10165056145.

It is an arithmetic number, because the mean of its divisors is an integer number (10165056145).

Almost surely, 2^20330112289 is an apocalyptic number.

It is an amenable number.

20330112289 is a deficient number, since it is larger than the sum of its proper divisors (1).

20330112289 is an equidigital number, since it uses as much as digits as its factorization.

20330112289 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 31.

The spelling of 20330112289 in words is "twenty billion, three hundred thirty million, one hundred twelve thousand, two hundred eighty-nine".