11011100101101 has 20 divisors (see below), whose sum is σ = 17416249835292. Its totient is φ = 6908925552768.

The previous prime is 11011100101091. The next prime is 11011100101117. The reversal of 11011100101101 is 10110100111011.

It can be written as a sum of positive squares in 2 ways, for example, as 4302616775625 + 6708483325476 = 2074275^2 + 2590074^2 .

It is not a de Polignac number, because 11011100101101 - 2⁹ = 11011100100589 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011100101201) 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 19 ways as a sum of consecutive naturals, for example, 3998219430 + ... + 3998222183.

Almost surely, 2^{11011100101101} is an apocalyptic number.

It is an amenable number.

11011100101101 is a deficient number, since it is larger than the sum of its proper divisors (6405149734191).

11011100101101 is an equidigital number, since it uses as much as digits as its factorization.

11011100101101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7996441642 (or 7996441633 counting only the distinct ones).

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

Adding to 11011100101101 its reverse (10110100111011), we get a palindrome (21121200212112).

The spelling of 11011100101101 in words is "eleven trillion, eleven billion, one hundred million, one hundred one thousand, one hundred one".