4121043021443 has 32 divisors (see below), whose sum is σ = 4659658223616. Its totient is φ = 3623249000448.

The previous prime is 4121043021439. The next prime is 4121043021479. The reversal of 4121043021443 is 3441203401214.

It is not a de Polignac number, because 4121043021443 - 2² = 4121043021439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4121043021493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 240467771 + ... + 240484907.

It is an arithmetic number, because the mean of its divisors is an integer number (145614319488).

Almost surely, 2^{4121043021443} is an apocalyptic number.

4121043021443 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

4121043021443 is a deficient number, since it is larger than the sum of its proper divisors (538615202173).

4121043021443 is a wasteful number, since it uses less digits than its factorization.

4121043021443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31523.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 4121043021443 its reverse (3441203401214), we get a palindrome (7562246422657).

The spelling of 4121043021443 in words is "four trillion, one hundred twenty-one billion, forty-three million, twenty-one thousand, four hundred forty-three".