11000111609 has 2 divisors, whose sum is σ = 11000111610. Its totient is φ = 11000111608.

The previous prime is 11000111593. The next prime is 11000111611. The reversal of 11000111609 is 90611100011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10348585984 + 651525625 = 101728^2 + 25525^2 .

It is a cyclic number.

It is not a de Polignac number, because 11000111609 - 2⁴ = 11000111593 is a prime.

Together with 11000111611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11000111659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500055804 + 5500055805.

It is an arithmetic number, because the mean of its divisors is an integer number (5500055805).

Almost surely, 2^11000111609 is an apocalyptic number.

It is an amenable number.

11000111609 is a deficient number, since it is larger than the sum of its proper divisors (1).

11000111609 is an equidigital number, since it uses as much as digits as its factorization.

11000111609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 20.

The spelling of 11000111609 in words is "eleven billion, one hundred eleven thousand, six hundred nine".