20333132189 has 2 divisors, whose sum is σ = 20333132190. Its totient is φ = 20333132188.

The previous prime is 20333132167. The next prime is 20333132201. The reversal of 20333132189 is 98123133302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16215984964 + 4117147225 = 127342^2 + 64165^2 .

It is a cyclic number.

It is not a de Polignac number, because 20333132189 - 2⁸ = 20333131933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20333132789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166566094 + 10166566095.

It is an arithmetic number, because the mean of its divisors is an integer number (10166566095).

Almost surely, 2^20333132189 is an apocalyptic number.

It is an amenable number.

20333132189 is a deficient number, since it is larger than the sum of its proper divisors (1).

20333132189 is an equidigital number, since it uses as much as digits as its factorization.

20333132189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 20333132189 in words is "twenty billion, three hundred thirty-three million, one hundred thirty-two thousand, one hundred eighty-nine".