11010011111011 has 4 divisors (see below), whose sum is σ = 12010921212024. Its totient is φ = 10009101010000.

The previous prime is 11010011110999. The next prime is 11010011111063. The reversal of 11010011111011 is 11011111001011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11010011111011 - 2⁹ = 11010011110499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11010011151011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500455050490 + ... + 500455050511.

It is an arithmetic number, because the mean of its divisors is an integer number (3002730303006).

Almost surely, 2^{11010011111011} is an apocalyptic number.

11010011111011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11010011111011 is a deficient number, since it is larger than the sum of its proper divisors (1000910101013).

11010011111011 is a wasteful number, since it uses less digits than its factorization.

11010011111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000910101012.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 11010011111011 its reverse (11011111001011), we get a palindrome (22021122112022).

The spelling of 11010011111011 in words is "eleven trillion, ten billion, eleven million, one hundred eleven thousand, eleven".