11101243985 has 16 divisors (see below), whose sum is σ = 14399577360. Its totient is φ = 8167353600.

The previous prime is 11101243921. The next prime is 11101243999. The reversal of 11101243985 is 58934210111.

It is a happy number.

11101243985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 4597789249 + 6503454736 = 67807^2 + 80644^2 .

It is not a de Polignac number, because 11101243985 - 2⁶ = 11101243921 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 299966 + ... + 334935.

It is an arithmetic number, because the mean of its divisors is an integer number (899973585).

Almost surely, 2^11101243985 is an apocalyptic number.

It is an amenable number.

11101243985 is a deficient number, since it is larger than the sum of its proper divisors (3298333375).

11101243985 is a wasteful number, since it uses less digits than its factorization.

11101243985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635188.

The product of its (nonzero) digits is 8640, while the sum is 35.

The spelling of 11101243985 in words is "eleven billion, one hundred one million, two hundred forty-three thousand, nine hundred eighty-five".