11111111000011 has 16 divisors (see below), whose sum is σ = 12185086058496. Its totient is φ = 10047785200000.

The previous prime is 11111110999999. The next prime is 11111111000047. The reversal of 11111111000011 is 11000011111111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11111111000011 - 2¹¹ = 11111110997963 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11111111070011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78424686 + ... + 78566236.

It is an arithmetic number, because the mean of its divisors is an integer number (761567878656).

Almost surely, 2^{11111111000011} is an apocalyptic number.

11111111000011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11111111000011 is a deficient number, since it is larger than the sum of its proper divisors (1073975058485).

11111111000011 is a wasteful number, since it uses less digits than its factorization.

11111111000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179114.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 11111111000011 its reverse (11000011111111), we get a palindrome (22111122111122).

It can be divided in two parts, 111111 and 11000011, that multiplied together give a palindrome (1222222222221).

The spelling of 11111111000011 in words is "eleven trillion, one hundred eleven billion, one hundred eleven million, eleven", and thus it is an aban number.