42321220441 has 16 divisors (see below), whose sum is σ = 43961979600. Its totient is φ = 40692895488.

The previous prime is 42321220427. The next prime is 42321220457. The reversal of 42321220441 is 14402212324.

42321220441 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 8 ways, for example, as 5715964816 + 36605255625 = 75604^2 + 191325^2 .

It is a cyclic number.

It is not a de Polignac number, because 42321220441 - 2¹⁵ = 42321187673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42321820441) 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, 8618695 + ... + 8623603.

It is an arithmetic number, because the mean of its divisors is an integer number (2747623725).

Almost surely, 2^42321220441 is an apocalyptic number.

It is an amenable number.

42321220441 is a deficient number, since it is larger than the sum of its proper divisors (1640759159).

42321220441 is a wasteful number, since it uses less digits than its factorization.

42321220441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6108.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 42321220441 its reverse (14402212324), we get a palindrome (56723432765).

The spelling of 42321220441 in words is "forty-two billion, three hundred twenty-one million, two hundred twenty thousand, four hundred forty-one".