243221044141 has 4 divisors (see below), whose sum is σ = 243222963772. Its totient is φ = 243219124512.

The previous prime is 243221044127. The next prime is 243221044159. The reversal of 243221044141 is 141440122342.

243221044141 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 210333221641 + 32887822500 = 458621^2 + 181350^2 .

It is a cyclic number.

It is not a de Polignac number, because 243221044141 - 2⁵ = 243221044109 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 (243221044111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755226 + ... + 1028011.

It is an arithmetic number, because the mean of its divisors is an integer number (60805740943).

Almost surely, 2^243221044141 is an apocalyptic number.

It is an amenable number.

243221044141 is a deficient number, since it is larger than the sum of its proper divisors (1919631).

243221044141 is a wasteful number, since it uses less digits than its factorization.

243221044141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919630.

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

Adding to 243221044141 its reverse (141440122342), we get a palindrome (384661166483).

The spelling of 243221044141 in words is "two hundred forty-three billion, two hundred twenty-one million, forty-four thousand, one hundred forty-one".