11101010085 has 144 divisors (see below), whose sum is σ = 21690789120. Its totient is φ = 5246841600.

The previous prime is 11101010083. The next prime is 11101010087. The reversal of 11101010085 is 58001010111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11101010083) and next prime (11101010087).

It is not a de Polignac number, because 11101010085 - 2¹ = 11101010083 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101010083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 56350207 + ... + 56350403.

It is an arithmetic number, because the mean of its divisors is an integer number (150630480).

Almost surely, 2^11101010085 is an apocalyptic number.

11101010085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11101010085 is a deficient number, since it is larger than the sum of its proper divisors (10589779035).

11101010085 is a wasteful number, since it uses less digits than its factorization.

11101010085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 426 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 18.

Adding to 11101010085 its reverse (58001010111), we get a palindrome (69102020196).

The spelling of 11101010085 in words is "eleven billion, one hundred one million, ten thousand, eighty-five".