11440344011 has 4 divisors (see below), whose sum is σ = 12042467400. Its totient is φ = 10838220624.

The previous prime is 11440343969. The next prime is 11440344017. The reversal of 11440344011 is 11044304411.

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 11440344011 - 2¹⁰ = 11440342987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11440344017) 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, 301061666 + ... + 301061703.

It is an arithmetic number, because the mean of its divisors is an integer number (3010616850).

Almost surely, 2^11440344011 is an apocalyptic number.

11440344011 is a deficient number, since it is larger than the sum of its proper divisors (602123389).

11440344011 is an equidigital number, since it uses as much as digits as its factorization.

11440344011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602123388.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 11440344011 its reverse (11044304411), we get a palindrome (22484648422).

The spelling of 11440344011 in words is "eleven billion, four hundred forty million, three hundred forty-four thousand, eleven".