11211044441 has 4 divisors (see below), whose sum is σ = 11286286500. Its totient is φ = 11135802384.

The previous prime is 11211044419. The next prime is 11211044443. The reversal of 11211044441 is 14444011211.

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 4228770841 + 6982273600 = 65029^2 + 83560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11211044441 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11211044443) 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, 37620806 + ... + 37621103.

It is an arithmetic number, because the mean of its divisors is an integer number (2821571625).

Almost surely, 2^11211044441 is an apocalyptic number.

It is an amenable number.

11211044441 is a deficient number, since it is larger than the sum of its proper divisors (75242059).

11211044441 is an equidigital number, since it uses as much as digits as its factorization.

11211044441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75242058.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 11211044441 its reverse (14444011211), we get a palindrome (25655055652).

The spelling of 11211044441 in words is "eleven billion, two hundred eleven million, forty-four thousand, four hundred forty-one".