11000009089 has 2 divisors, whose sum is σ = 11000009090. Its totient is φ = 11000009088.

The previous prime is 11000009071. The next prime is 11000009099. The reversal of 11000009089 is 98090000011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6350814864 + 4649194225 = 79692^2 + 68185^2 .

It is an emirp because it is prime and its reverse (98090000011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11000009089 - 2⁵ = 11000009057 is a prime.

It is not a weakly prime, because it can be changed into another prime (11000009099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500004544 + 5500004545.

It is an arithmetic number, because the mean of its divisors is an integer number (5500004545).

Almost surely, 2^11000009089 is an apocalyptic number.

It is an amenable number.

11000009089 is a deficient number, since it is larger than the sum of its proper divisors (1).

11000009089 is an equidigital number, since it uses as much as digits as its factorization.

11000009089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 11000009089 in words is "eleven billion, nine thousand, eighty-nine".