11000011111001 has 8 divisors (see below), whose sum is σ = 12016701993600. Its totient is φ = 9986101873840.

The previous prime is 11000011110997. The next prime is 11000011111031. The reversal of 11000011111001 is 10011111000011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11000011111001 - 2² = 11000011110997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11000011111001.

It is not an unprimeable number, because it can be changed into a prime (11000011111031) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 695403086 + ... + 695418903.

It is an arithmetic number, because the mean of its divisors is an integer number (1502087749200).

Almost surely, 2^{11000011111001} is an apocalyptic number.

11000011111001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11000011111001 is a deficient number, since it is larger than the sum of its proper divisors (1016690882599).

11000011111001 is a wasteful number, since it uses less digits than its factorization.

11000011111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390822719.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 11000011111001 its reverse (10011111000011), we get a palindrome (21011122111012).

The spelling of 11000011111001 in words is "eleven trillion, eleven million, one hundred eleven thousand, one".