11001111111105 has 16 divisors (see below), whose sum is σ = 17757545725440. Its totient is φ = 5815336610048.

The previous prime is 11001111110999. The next prime is 11001111111127. The reversal of 11001111111105 is 50111111110011.

It is a cyclic number.

It is not a de Polignac number, because 11001111111105 - 2⁸ = 11001111110849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3245163825 + ... + 3245167214.

It is an arithmetic number, because the mean of its divisors is an integer number (1109846607840).

Almost surely, 2^{11001111111105} is an apocalyptic number.

11001111111105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11001111111105 is a deficient number, since it is larger than the sum of its proper divisors (6756434614335).

11001111111105 is a wasteful number, since it uses less digits than its factorization.

11001111111105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6490331160.

The product of its (nonzero) digits is 5, while the sum is 15.

Adding to 11001111111105 its reverse (50111111110011), we get a palindrome (61112222221116).

The spelling of 11001111111105 in words is "eleven trillion, one billion, one hundred eleven million, one hundred eleven thousand, one hundred five".