11001010101011 has 32 divisors (see below), whose sum is σ = 13251964366848. Its totient is φ = 8934561169920.

The previous prime is 11001010101007. The next prime is 11001010101019. The reversal of 11001010101011 is 11010101010011.

It is a cyclic number.

It is not a de Polignac number, because 11001010101011 - 2² = 11001010101007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11001010101011.

It is not an unprimeable number, because it can be changed into a prime (11001010101019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 364325 + ... + 4704758.

It is an arithmetic number, because the mean of its divisors is an integer number (414123886464).

Almost surely, 2^{11001010101011} is an apocalyptic number.

11001010101011 is a deficient number, since it is larger than the sum of its proper divisors (2250954265837).

11001010101011 is a wasteful number, since it uses less digits than its factorization.

11001010101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5069331.

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

Adding to 11001010101011 its reverse (11010101010011), we get a palindrome (22011111111022).

The spelling of 11001010101011 in words is "eleven trillion, one billion, ten million, one hundred one thousand, eleven".