11000111001001 has 32 divisors (see below), whose sum is σ = 12246694732800. Its totient is φ = 9842243100480.

The previous prime is 11000111000999. The next prime is 11000111001007. The reversal of 11000111001001 is 10010011100011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11000111001001 - 2¹ = 11000111000999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11000111001007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1069860 + ... + 4810906.

It is an arithmetic number, because the mean of its divisors is an integer number (382709210400).

Almost surely, 2^{11000111001001} is an apocalyptic number.

It is an amenable number.

11000111001001 is a deficient number, since it is larger than the sum of its proper divisors (1246583731799).

11000111001001 is a wasteful number, since it uses less digits than its factorization.

11000111001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741229.

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

Adding to 11000111001001 its reverse (10010011100011), we get a palindrome (21010122101012).

It can be divided in two parts, 1100011 and 1001001, that multiplied together give a palindrome (1101112111011).

The spelling of 11000111001001 in words is "eleven trillion, one hundred eleven million, one thousand, one".