11111000010001 has 16 divisors (see below), whose sum is σ = 11194125465600. Its totient is φ = 11028213710928.

The previous prime is 11111000009999. The next prime is 11111000010037. The reversal of 11111000010001 is 10001000011111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11111000010001 - 2¹ = 11111000009999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11111000010041) 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 15 ways as a sum of consecutive naturals, for example, 208204360 + ... + 208257718.

It is an arithmetic number, because the mean of its divisors is an integer number (699632841600).

Almost surely, 2^{11111000010001} is an apocalyptic number.

It is an amenable number.

11111000010001 is a deficient number, since it is larger than the sum of its proper divisors (83125455599).

11111000010001 is a wasteful number, since it uses less digits than its factorization.

11111000010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56508.

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

Adding to 11111000010001 its reverse (10001000011111), we get a palindrome (21112000021112).

The spelling of 11111000010001 in words is "eleven trillion, one hundred eleven billion, ten thousand, one".