11111100110011 has 16 divisors (see below), whose sum is σ = 12417629495040. Its totient is φ = 9854526417120.

The previous prime is 11111100110009. The next prime is 11111100110051. The reversal of 11111100110011 is 11001100111111.

It is a happy number.

It is not a de Polignac number, because 11111100110011 - 2¹ = 11111100110009 is a prime.

It is a zygodrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 11111100110011.

It is not an unprimeable number, because it can be changed into a prime (11111100110051) 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, 13365991 + ... + 14172928.

It is an arithmetic number, because the mean of its divisors is an integer number (776101843440).

Almost surely, 2^{11111100110011} is an apocalyptic number.

11111100110011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11111100110011 is a deficient number, since it is larger than the sum of its proper divisors (1306529385029).

11111100110011 is a wasteful number, since it uses less digits than its factorization.

11111100110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27539826.

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

Adding to 11111100110011 its reverse (11001100111111), we get a palindrome (22112200221122).

It can be divided in two parts, 1111 and 1100110011, that multiplied together give a palindrome (1222222222221).

The spelling of 11111100110011 in words is "eleven trillion, one hundred eleven billion, one hundred million, one hundred ten thousand, eleven".