100111011011 has 4 divisors (see below), whose sum is σ = 109212012024. Its totient is φ = 91010010000.

The previous prime is 100111010977. The next prime is 100111011031. The reversal of 100111011011 is 110110111001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100111011011 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 100111011011.

It is not an unprimeable number, because it can be changed into a prime (100111011031) 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 3 ways as a sum of consecutive naturals, for example, 4550500490 + ... + 4550500511.

It is an arithmetic number, because the mean of its divisors is an integer number (27303003006).

Almost surely, 2^100111011011 is an apocalyptic number.

100111011011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100111011011 is a deficient number, since it is larger than the sum of its proper divisors (9101001013).

100111011011 is an equidigital number, since it uses as much as digits as its factorization.

100111011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9101001012.

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

Adding to 100111011011 its reverse (110110111001), we get a palindrome (210221122012).

It can be divided in two parts, 1001 and 11011011, that multiplied together give a palindrome (11022022011).

The spelling of 100111011011 in words is "one hundred billion, one hundred eleven million, eleven thousand, eleven".