11011042909 has 2 divisors, whose sum is σ = 11011042910. Its totient is φ = 11011042908.

The previous prime is 11011042891. The next prime is 11011042937. The reversal of 11011042909 is 90924011011.

11011042909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (11011042937) can be obtained adding 11011042909 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10524708100 + 486334809 = 102590^2 + 22053^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011042909 - 2⁷ = 11011042781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11011042949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505521454 + 5505521455.

It is an arithmetic number, because the mean of its divisors is an integer number (5505521455).

Almost surely, 2^11011042909 is an apocalyptic number.

It is an amenable number.

11011042909 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011042909 is an equidigital number, since it uses as much as digits as its factorization.

11011042909 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 11011042909 in words is "eleven billion, eleven million, forty-two thousand, nine hundred nine".