42421233244441 has 4 divisors (see below), whose sum is σ = 42841245454884. Its totient is φ = 42001221034000.

The previous prime is 42421233244427. The next prime is 42421233244447. The reversal of 42421233244441 is 14444233212424.

42421233244441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19807128270400 + 22614104974041 = 4450520^2 + 4755429^2 .

It is a cyclic number.

It is not a de Polignac number, because 42421233244441 - 2¹⁵ = 42421233211673 is a prime.

It is a super-2 number, since 2×42421233244441² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42421233244394 and 42421233244403.

It is not an unprimeable number, because it can be changed into a prime (42421233244447) 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 3 ways as a sum of consecutive naturals, for example, 210006105070 + ... + 210006105271.

It is an arithmetic number, because the mean of its divisors is an integer number (10710311363721).

Almost surely, 2^{42421233244441} is an apocalyptic number.

It is an amenable number.

42421233244441 is a deficient number, since it is larger than the sum of its proper divisors (420012210443).

42421233244441 is a wasteful number, since it uses less digits than its factorization.

42421233244441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420012210442.

The product of its digits is 589824, while the sum is 40.

Adding to 42421233244441 its reverse (14444233212424), we get a palindrome (56865466456865).

The spelling of 42421233244441 in words is "forty-two trillion, four hundred twenty-one billion, two hundred thirty-three million, two hundred forty-four thousand, four hundred forty-one".