20111341189 has 2 divisors, whose sum is σ = 20111341190. Its totient is φ = 20111341188.

The previous prime is 20111341183. The next prime is 20111341213. The reversal of 20111341189 is 98114311102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15287344164 + 4823997025 = 123642^2 + 69455^2 .

It is a cyclic number.

It is not a de Polignac number, because 20111341189 - 2²⁷ = 19977123461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20111341189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20111341183) 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, 10055670594 + 10055670595.

It is an arithmetic number, because the mean of its divisors is an integer number (10055670595).

Almost surely, 2^20111341189 is an apocalyptic number.

It is an amenable number.

20111341189 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111341189 is an equidigital number, since it uses as much as digits as its factorization.

20111341189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 31.

The spelling of 20111341189 in words is "twenty billion, one hundred eleven million, three hundred forty-one thousand, one hundred eighty-nine".