11010101101011 has 6 divisors (see below), whose sum is σ = 15903479368140. Its totient is φ = 7340067400668.

The previous prime is 11010101101001. The next prime is 11010101101037. The reversal of 11010101101011 is 11010110101011.

It is not a de Polignac number, because 11010101101011 - 2³⁷ = 10872662147539 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1223344566779 = 11010101101011 / (1 + 1 + 0 + 1 + 0 + 1 + 0 + 1 + 1 + 0 + 1 + 0 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 11010101100984 and 11010101101002.

It is not an unprimeable number, because it can be changed into a prime (11010101101001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611672283381 + ... + 611672283398.

It is an arithmetic number, because the mean of its divisors is an integer number (2650579894690).

Almost surely, 2^{11010101101011} is an apocalyptic number.

11010101101011 is a deficient number, since it is larger than the sum of its proper divisors (4893378267129).

11010101101011 is a wasteful number, since it uses less digits than its factorization.

11010101101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223344566785 (or 1223344566782 counting only the distinct ones).

The product of its (nonzero) digits is 1, while the sum is 9.

Adding to 11010101101011 its reverse (11010110101011), we get a palindrome (22020211202022).

Subtracting 11010101101011 from its reverse (11010110101011), we obtain a square (9000000 = 3000²).

The spelling of 11010101101011 in words is "eleven trillion, ten billion, one hundred one million, one hundred one thousand, eleven".