11444434211 has 4 divisors (see below), whose sum is σ = 13079353392. Its totient is φ = 9809515032.

The previous prime is 11444434189. The next prime is 11444434223. The reversal of 11444434211 is 11243444411.

It is a happy number.

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-11444434211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11444434271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817459580 + ... + 817459593.

It is an arithmetic number, because the mean of its divisors is an integer number (3269838348).

Almost surely, 2^11444434211 is an apocalyptic number.

11444434211 is a deficient number, since it is larger than the sum of its proper divisors (1634919181).

11444434211 is an equidigital number, since it uses as much as digits as its factorization.

11444434211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634919180.

The product of its digits is 6144, while the sum is 29.

Adding to 11444434211 its reverse (11243444411), we get a palindrome (22687878622).

The spelling of 11444434211 in words is "eleven billion, four hundred forty-four million, four hundred thirty-four thousand, two hundred eleven".