11009001011 has 2 divisors, whose sum is σ = 11009001012. Its totient is φ = 11009001010.

The previous prime is 11009000999. The next prime is 11009001013. The reversal of 11009001011 is 11010090011.

It is a happy number.

It is a strong prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 11010060011 and 11006001011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11009001011 is a prime.

Together with 11009001013, 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 (11009001013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5504500505 + 5504500506.

It is an arithmetic number, because the mean of its divisors is an integer number (5504500506).

Almost surely, 2^11009001011 is an apocalyptic number.

11009001011 is a deficient number, since it is larger than the sum of its proper divisors (1).

11009001011 is an equidigital number, since it uses as much as digits as its factorization.

11009001011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9, while the sum is 14.

Adding to 11009001011 its reverse (11010090011), we get a palindrome (22019091022).

The spelling of 11009001011 in words is "eleven billion, nine million, one thousand, eleven".