11440211311 has 4 divisors (see below), whose sum is σ = 11440754752. Its totient is φ = 11439667872.

The previous prime is 11440211309. The next prime is 11440211317. The reversal of 11440211311 is 11311204411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11440211311 - 2¹ = 11440211309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11440211317) 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, 238815 + ... + 282688.

It is an arithmetic number, because the mean of its divisors is an integer number (2860188688).

Almost surely, 2^11440211311 is an apocalyptic number.

11440211311 is a deficient number, since it is larger than the sum of its proper divisors (543441).

11440211311 is an equidigital number, since it uses as much as digits as its factorization.

11440211311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543440.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 11440211311 its reverse (11311204411), we get a palindrome (22751415722).

The spelling of 11440211311 in words is "eleven billion, four hundred forty million, two hundred eleven thousand, three hundred eleven".