11444311311 has 8 divisors (see below), whose sum is σ = 16156674864. Its totient is φ = 7180744320.

The previous prime is 11444311297. The next prime is 11444311369. The reversal of 11444311311 is 11311344411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11444311311 - 2⁶ = 11444311247 is a prime.

It is a super-2 number, since 2×11444311311² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11444311511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112199080 + ... + 112199181.

It is an arithmetic number, because the mean of its divisors is an integer number (2019584358).

Almost surely, 2^11444311311 is an apocalyptic number.

11444311311 is a deficient number, since it is larger than the sum of its proper divisors (4712363553).

11444311311 is a wasteful number, since it uses less digits than its factorization.

11444311311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224398281.

The product of its digits is 576, while the sum is 24.

Adding to 11444311311 its reverse (11311344411), we get a palindrome (22755655722).

The spelling of 11444311311 in words is "eleven billion, four hundred forty-four million, three hundred eleven thousand, three hundred eleven".