11001000110101 has 4 divisors (see below), whose sum is σ = 11001010434732. Its totient is φ = 11000989785472.

The previous prime is 11001000110081. The next prime is 11001000110147. The reversal of 11001000110101 is 10101100010011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 907353407601 + 10093646702500 = 952551^2 + 3177050^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11001000110101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001000110171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3352570 + ... + 5765563.

It is an arithmetic number, because the mean of its divisors is an integer number (2750252608683).

Almost surely, 2^{11001000110101} is an apocalyptic number.

It is an amenable number.

11001000110101 is a deficient number, since it is larger than the sum of its proper divisors (10324631).

11001000110101 is an equidigital number, since it uses as much as digits as its factorization.

11001000110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10324630.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 11001000110101 its reverse (10101100010011), we get a palindrome (21102100120112).

The spelling of 11001000110101 in words is "eleven trillion, one billion, one hundred ten thousand, one hundred one".