11103333121 has 4 divisors (see below), whose sum is σ = 11142847044. Its totient is φ = 11063819200.

The previous prime is 11103333089. The next prime is 11103333127. The reversal of 11103333121 is 12133330111.

11103333121 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 can be written as a sum of positive squares in 2 ways, for example, as 9468263025 + 1635070096 = 97305^2 + 40436^2 .

It is a cyclic number.

It is not a de Polignac number, because 11103333121 - 2⁵ = 11103333089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11103333127) 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, 19756540 + ... + 19757101.

It is an arithmetic number, because the mean of its divisors is an integer number (2785711761).

Almost surely, 2^11103333121 is an apocalyptic number.

It is an amenable number.

11103333121 is a deficient number, since it is larger than the sum of its proper divisors (39513923).

11103333121 is an equidigital number, since it uses as much as digits as its factorization.

11103333121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39513922.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 11103333121 its reverse (12133330111), we get a palindrome (23236663232).

The spelling of 11103333121 in words is "eleven billion, one hundred three million, three hundred thirty-three thousand, one hundred twenty-one".