100511101105 has 4 divisors (see below), whose sum is σ = 120613321332. Its totient is φ = 80408880880.

The previous prime is 100511101063. The next prime is 100511101129. The reversal of 100511101105 is 501101115001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 52836998769 + 47674102336 = 229863^2 + 218344^2 .

It is not a de Polignac number, because 100511101105 - 2²⁹ = 99974230193 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10051110106 + ... + 10051110115.

It is an arithmetic number, because the mean of its divisors is an integer number (30153330333).

Almost surely, 2^100511101105 is an apocalyptic number.

It is an amenable number.

100511101105 is a deficient number, since it is larger than the sum of its proper divisors (20102220227).

100511101105 is an equidigital number, since it uses as much as digits as its factorization.

100511101105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20102220226.

The product of its (nonzero) digits is 25, while the sum is 16.

Adding to 100511101105 its reverse (501101115001), we get a palindrome (601612216106).

The spelling of 100511101105 in words is "one hundred billion, five hundred eleven million, one hundred one thousand, one hundred five".