20011333189 has 2 divisors, whose sum is σ = 20011333190. Its totient is φ = 20011333188.

The previous prime is 20011333183. The next prime is 20011333213. The reversal of 20011333189 is 98133311002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14648260900 + 5363072289 = 121030^2 + 73233^2 .

It is a cyclic number.

It is not a de Polignac number, because 20011333189 - 2⁵ = 20011333157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20011333189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20011333183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005666594 + 10005666595.

It is an arithmetic number, because the mean of its divisors is an integer number (10005666595).

Almost surely, 2^20011333189 is an apocalyptic number.

It is an amenable number.

20011333189 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011333189 is an equidigital number, since it uses as much as digits as its factorization.

20011333189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 20011333189 in words is "twenty billion, eleven million, three hundred thirty-three thousand, one hundred eighty-nine".