11100120103 has 4 divisors (see below), whose sum is σ = 11141384760. Its totient is φ = 11058855448.

The previous prime is 11100120077. The next prime is 11100120107. The reversal of 11100120103 is 30102100111.

11100120103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-11100120103 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 11100120103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100120107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20631925 + ... + 20632462.

It is an arithmetic number, because the mean of its divisors is an integer number (2785346190).

Almost surely, 2^11100120103 is an apocalyptic number.

11100120103 is a deficient number, since it is larger than the sum of its proper divisors (41264657).

11100120103 is an equidigital number, since it uses as much as digits as its factorization.

11100120103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41264656.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 11100120103 its reverse (30102100111), we get a palindrome (41202220214).

The spelling of 11100120103 in words is "eleven billion, one hundred million, one hundred twenty thousand, one hundred three".