11011100011011 has 12 divisors (see below), whose sum is σ = 15906193675840. Its totient is φ = 7340146523280.

The previous prime is 11011100010991. The next prime is 11011100011049. The reversal of 11011100011011 is 11011000111011.

It is not a de Polignac number, because 11011100011011 - 2⁹ = 11011100010499 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11011100010984 and 11011100011002.

It is not an unprimeable number, because it can be changed into a prime (11011100011211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48782596 + ... + 49007793.

Almost surely, 2^{11011100011011} is an apocalyptic number.

11011100011011 is a deficient number, since it is larger than the sum of its proper divisors (4895093664829).

11011100011011 is a wasteful number, since it uses less digits than its factorization.

11011100011011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97802906 (or 97802903 counting only the distinct ones).

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

Adding to 11011100011011 its reverse (11011000111011), we get a palindrome (22022100122022).

The spelling of 11011100011011 in words is "eleven trillion, eleven billion, one hundred million, eleven thousand, eleven".