43010044021 has 16 divisors (see below), whose sum is σ = 49296935808. Its totient is φ = 36758937600.

The previous prime is 43010044001. The next prime is 43010044031. The reversal of 43010044021 is 12044001034.

It is not a de Polignac number, because 43010044021 - 2⁹ = 43010043509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43010044021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43010044001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4535541 + ... + 4545013.

It is an arithmetic number, because the mean of its divisors is an integer number (3081058488).

Almost surely, 2^43010044021 is an apocalyptic number.

It is an amenable number.

43010044021 is a deficient number, since it is larger than the sum of its proper divisors (6286891787).

43010044021 is a wasteful number, since it uses less digits than its factorization.

43010044021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11292.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 43010044021 its reverse (12044001034), we get a palindrome (55054045055).

The spelling of 43010044021 in words is "forty-three billion, ten million, forty-four thousand, twenty-one".