11001085587 has 18 divisors (see below), whose sum is σ = 16611392252. Its totient is φ = 7015181976.

The previous prime is 11001085559. The next prime is 11001085603. The reversal of 11001085587 is 78558010011.

It is a happy number.

It is not a de Polignac number, because 11001085587 - 2⁸ = 11001085331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11001084587) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1150573 + ... + 1160094.

Almost surely, 2^11001085587 is an apocalyptic number.

11001085587 is a deficient number, since it is larger than the sum of its proper divisors (5610306665).

11001085587 is a wasteful number, since it uses less digits than its factorization.

11001085587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2310719 (or 2310693 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 36.

Adding to 11001085587 its reverse (78558010011), we get a palindrome (89559095598).

The spelling of 11001085587 in words is "eleven billion, one million, eighty-five thousand, five hundred eighty-seven".