21042441144230 has 16 divisors (see below), whose sum is σ = 41319702610704. Its totient is φ = 7651796779680.

The previous prime is 21042441144209. The next prime is 21042441144239. The reversal of 21042441144230 is 3244114424012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21042441144239) 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 7 ways as a sum of consecutive naturals, for example, 95647459637 + ... + 95647459856.

It is an arithmetic number, because the mean of its divisors is an integer number (2582481413169).

Almost surely, 2^{21042441144230} is an apocalyptic number.

21042441144230 is a deficient number, since it is larger than the sum of its proper divisors (20277261466474).

21042441144230 is a wasteful number, since it uses less digits than its factorization.

21042441144230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191294919511.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 21042441144230 its reverse (3244114424012), we get a palindrome (24286555568242).

The spelling of 21042441144230 in words is "twenty-one trillion, forty-two billion, four hundred forty-one million, one hundred forty-four thousand, two hundred thirty".