11443033421 has 16 divisors (see below), whose sum is σ = 12332865600. Its totient is φ = 10577618688.

The previous prime is 11443033409. The next prime is 11443033477. The reversal of 11443033421 is 12433034411.

It is a happy number.

11443033421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11443033421 - 2²⁶ = 11375924557 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 (11443033321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1228046 + ... + 1237328.

It is an arithmetic number, because the mean of its divisors is an integer number (770804100).

Almost surely, 2^11443033421 is an apocalyptic number.

It is an amenable number.

11443033421 is a deficient number, since it is larger than the sum of its proper divisors (889832179).

11443033421 is a wasteful number, since it uses less digits than its factorization.

11443033421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10588.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 11443033421 its reverse (12433034411), we get a palindrome (23876067832).

The spelling of 11443033421 in words is "eleven billion, four hundred forty-three million, thirty-three thousand, four hundred twenty-one".