11103120111 has 4 divisors (see below), whose sum is σ = 14804160152. Its totient is φ = 7402080072.

The previous prime is 11103120101. The next prime is 11103120113. The reversal of 11103120111 is 11102130111.

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

It is not a de Polignac number, because 11103120111 - 2⁶ = 11103120047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103120113) 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, 1850520016 + ... + 1850520021.

It is an arithmetic number, because the mean of its divisors is an integer number (3701040038).

Almost surely, 2^11103120111 is an apocalyptic number.

11103120111 is a deficient number, since it is larger than the sum of its proper divisors (3701040041).

11103120111 is an equidigital number, since it uses as much as digits as its factorization.

11103120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3701040040.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 11103120111 its reverse (11102130111), we get a palindrome (22205250222).

The spelling of 11103120111 in words is "eleven billion, one hundred three million, one hundred twenty thousand, one hundred eleven".