11443344420 has 48 divisors (see below), whose sum is σ = 32207414400. Its totient is φ = 3035744256.

The previous prime is 11443344403. The next prime is 11443344449. The reversal of 11443344420 is 2444334411.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 482520 + ... + 505679.

It is an arithmetic number, because the mean of its divisors is an integer number (670987800).

Almost surely, 2^11443344420 is an apocalyptic number.

11443344420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11443344420 is an abundant number, since it is smaller than the sum of its proper divisors (20764069980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11443344420 is a wasteful number, since it uses less digits than its factorization.

11443344420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988404 (or 988402 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 11443344420 its reverse (2444334411), we get a palindrome (13887678831).

The spelling of 11443344420 in words is "eleven billion, four hundred forty-three million, three hundred forty-four thousand, four hundred twenty".