1100111001011 has 16 divisors (see below), whose sum is σ = 1232429644800. Its totient is φ = 973533724800.

The previous prime is 1100111001007. The next prime is 1100111001149. The reversal of 1100111001011 is 1101001110011.

It is a cyclic number.

It is not a de Polignac number, because 1100111001011 - 2² = 1100111001007 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 1100111001011.

It is not an unprimeable number, because it can be changed into a prime (1100111001511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8853446 + ... + 8976843.

It is an arithmetic number, because the mean of its divisors is an integer number (77026852800).

Almost surely, 2^{1100111001011} is an apocalyptic number.

1100111001011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1100111001011 is a deficient number, since it is larger than the sum of its proper divisors (132318643789).

1100111001011 is a wasteful number, since it uses less digits than its factorization.

1100111001011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17830450.

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

Adding to 1100111001011 its reverse (1101001110011), we get a palindrome (2201112111022).

The spelling of 1100111001011 in words is "one trillion, one hundred billion, one hundred eleven million, one thousand, eleven".