11011101011 has 2 divisors, whose sum is σ = 11011101012. Its totient is φ = 11011101010.

The previous prime is 11011100981. The next prime is 11011101047. The reversal of 11011101011 is 11010111011.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11011101011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11011101011.

It is not a weakly prime, because it can be changed into another prime (11011104011) 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, 5505550505 + 5505550506.

It is an arithmetic number, because the mean of its divisors is an integer number (5505550506).

Almost surely, 2^11011101011 is an apocalyptic number.

11011101011 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011101011 is an equidigital number, since it uses as much as digits as its factorization.

11011101011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 11011101011 its reverse (11010111011), we get a palindrome (22021212022).

The spelling of 11011101011 in words is "eleven billion, eleven million, one hundred one thousand, eleven".