42432443143221 has 16 divisors (see below), whose sum is σ = 58609477237248. Its totient is φ = 27278347084800.

The previous prime is 42432443143219. The next prime is 42432443143231. The reversal of 42432443143221 is 12234134423424.

42432443143221 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 42432443143221 - 2¹ = 42432443143219 is a prime.

It is a super-2 number, since 2×42432443143221² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42432443143221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42432443143231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 811829436 + ... + 811881701.

It is an arithmetic number, because the mean of its divisors is an integer number (3663092327328).

Almost surely, 2^{42432443143221} is an apocalyptic number.

It is an amenable number.

42432443143221 is a deficient number, since it is larger than the sum of its proper divisors (16177034094027).

42432443143221 is a wasteful number, since it uses less digits than its factorization.

42432443143221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623711452.

The product of its digits is 442368, while the sum is 39.

Adding to 42432443143221 its reverse (12234134423424), we get a palindrome (54666577566645).

The spelling of 42432443143221 in words is "forty-two trillion, four hundred thirty-two billion, four hundred forty-three million, one hundred forty-three thousand, two hundred twenty-one".