11101133209 has 2 divisors, whose sum is σ = 11101133210. Its totient is φ = 11101133208.

The previous prime is 11101133207. The next prime is 11101133291. The reversal of 11101133209 is 90233110111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7947187609 + 3153945600 = 89147^2 + 56160^2 .

It is a cyclic number.

It is not a de Polignac number, because 11101133209 - 2¹ = 11101133207 is a prime.

Together with 11101133207, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11101133209.

It is not a weakly prime, because it can be changed into another prime (11101133203) 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, 5550566604 + 5550566605.

It is an arithmetic number, because the mean of its divisors is an integer number (5550566605).

Almost surely, 2^11101133209 is an apocalyptic number.

It is an amenable number.

11101133209 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101133209 is an equidigital number, since it uses as much as digits as its factorization.

11101133209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 22.

The spelling of 11101133209 in words is "eleven billion, one hundred one million, one hundred thirty-three thousand, two hundred nine".