11001111084609 has 4 divisors (see below), whose sum is σ = 14668148112816. Its totient is φ = 7334074056404.

The previous prime is 11001111084529. The next prime is 11001111084611. The reversal of 11001111084609 is 90648011110011.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11001111084609 - 2¹⁷ = 11001110953537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11001111084609.

It is not an unprimeable number, because it can be changed into a prime (11001111084619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1833518514099 + ... + 1833518514104.

It is an arithmetic number, because the mean of its divisors is an integer number (3667037028204).

Almost surely, 2^{11001111084609} is an apocalyptic number.

It is an amenable number.

11001111084609 is a deficient number, since it is larger than the sum of its proper divisors (3667037028207).

11001111084609 is an equidigital number, since it uses as much as digits as its factorization.

11001111084609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667037028206.

The product of its (nonzero) digits is 1728, while the sum is 33.

The spelling of 11001111084609 in words is "eleven trillion, one billion, one hundred eleven million, eighty-four thousand, six hundred nine".