11440424443 has 4 divisors (see below), whose sum is σ = 13074770800. Its totient is φ = 9806078088.

The previous prime is 11440424393. The next prime is 11440424447. The reversal of 11440424443 is 34442404411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34442404411 = 53 ⋅649856687.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11440424443 is a prime.

It is a super-2 number, since 2×11440424443² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11440424447) 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, 817173168 + ... + 817173181.

It is an arithmetic number, because the mean of its divisors is an integer number (3268692700).

Almost surely, 2^11440424443 is an apocalyptic number.

11440424443 is a deficient number, since it is larger than the sum of its proper divisors (1634346357).

11440424443 is an equidigital number, since it uses as much as digits as its factorization.

11440424443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634346356.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 11440424443 its reverse (34442404411), we get a palindrome (45882828854).

The spelling of 11440424443 in words is "eleven billion, four hundred forty million, four hundred twenty-four thousand, four hundred forty-three".