43042442011021 has 8 divisors (see below), whose sum is σ = 43756366590720. Its totient is φ = 42333168406272.

The previous prime is 43042442011007. The next prime is 43042442011039. The reversal of 43042442011021 is 12011024424034.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43042442011021 - 2²⁵ = 43042408456589 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 (43042442011721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1162725076 + ... + 1162762093.

It is an arithmetic number, because the mean of its divisors is an integer number (5469545823840).

Almost surely, 2^{43042442011021} is an apocalyptic number.

It is an amenable number.

43042442011021 is a deficient number, since it is larger than the sum of its proper divisors (713924579699).

43042442011021 is a wasteful number, since it uses less digits than its factorization.

43042442011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325487475.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 43042442011021 its reverse (12011024424034), we get a palindrome (55053466435055).

The spelling of 43042442011021 in words is "forty-three trillion, forty-two billion, four hundred forty-two million, eleven thousand, twenty-one".