11000020489 has 2 divisors, whose sum is σ = 11000020490. Its totient is φ = 11000020488.

The previous prime is 11000020469. The next prime is 11000020511. The reversal of 11000020489 is 98402000011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8898714889 + 2101305600 = 94333^2 + 45840^2 .

It is a cyclic number.

It is not a de Polignac number, because 11000020489 - 2⁹ = 11000019977 is a prime.

It is not a weakly prime, because it can be changed into another prime (11000020429) 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, 5500010244 + 5500010245.

It is an arithmetic number, because the mean of its divisors is an integer number (5500010245).

Almost surely, 2^11000020489 is an apocalyptic number.

It is an amenable number.

11000020489 is a deficient number, since it is larger than the sum of its proper divisors (1).

11000020489 is an equidigital number, since it uses as much as digits as its factorization.

11000020489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 11000020489 in words is "eleven billion, twenty thousand, four hundred eighty-nine".