11011001101011 has 16 divisors (see below), whose sum is σ = 16330500510720. Its totient is φ = 7332609571560.

The previous prime is 11011001101007. The next prime is 11011001101013. The reversal of 11011001101011 is 11010110011011.

11011001101011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11011001101011 - 2² = 11011001101007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11011001100984 and 11011001101002.

It is not an unprimeable number, because it can be changed into a prime (11011001101013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223803535 + ... + 223852728.

It is an arithmetic number, because the mean of its divisors is an integer number (1020656281920).

Almost surely, 2^{11011001101011} is an apocalyptic number.

11011001101011 is a deficient number, since it is larger than the sum of its proper divisors (5319499409709).

11011001101011 is an equidigital number, since it uses as much as digits as its factorization.

11011001101011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447657183 (or 447657177 counting only the distinct ones).

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

Adding to 11011001101011 its reverse (11010110011011), we get a palindrome (22021111112022).

The spelling of 11011001101011 in words is "eleven trillion, eleven billion, one million, one hundred one thousand, eleven".