10043042021 has 6 divisors (see below), whose sum is σ = 10599443622. Its totient is φ = 9514460520.

The previous prime is 10043041999. The next prime is 10043042029. The reversal of 10043042021 is 12024034001.

10043042021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5758684996 + 4284357025 = 75886^2 + 65455^2 .

It is not a de Polignac number, because 10043042021 - 2²² = 10038847717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10043042029) 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 5 ways as a sum of consecutive naturals, for example, 13909670 + ... + 13910391.

It is an arithmetic number, because the mean of its divisors is an integer number (1766573937).

Almost surely, 2^10043042021 is an apocalyptic number.

It is an amenable number.

10043042021 is a deficient number, since it is larger than the sum of its proper divisors (556401601).

10043042021 is an equidigital number, since it uses as much as digits as its factorization.

10043042021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27820099 (or 27820080 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 10043042021 its reverse (12024034001), we get a palindrome (22067076022).

The spelling of 10043042021 in words is "ten billion, forty-three million, forty-two thousand, twenty-one".