11121550441 has 4 divisors (see below), whose sum is σ = 11133522900. Its totient is φ = 11109577984.

The previous prime is 11121550417. The next prime is 11121550469. The reversal of 11121550441 is 14405512111.

It is a happy number.

11121550441 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 5579492416 + 5542058025 = 74696^2 + 74445^2 .

It is a cyclic number.

It is not a de Polignac number, because 11121550441 - 2⁵ = 11121550409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11121550481) 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, 5984836 + ... + 5986693.

It is an arithmetic number, because the mean of its divisors is an integer number (2783380725).

Almost surely, 2^11121550441 is an apocalyptic number.

It is an amenable number.

11121550441 is a deficient number, since it is larger than the sum of its proper divisors (11972459).

11121550441 is an equidigital number, since it uses as much as digits as its factorization.

11121550441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11972458.

The product of its (nonzero) digits is 800, while the sum is 25.

The spelling of 11121550441 in words is "eleven billion, one hundred twenty-one million, five hundred fifty thousand, four hundred forty-one".