243203341441 has 4 divisors (see below), whose sum is σ = 243559423152. Its totient is φ = 242847259732.

The previous prime is 243203341427. The next prime is 243203341457. The reversal of 243203341441 is 144143302342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243203341441 - 2¹⁹ = 243202817153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243203351441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178039831 + ... + 178041196.

It is an arithmetic number, because the mean of its divisors is an integer number (60889855788).

Almost surely, 2^243203341441 is an apocalyptic number.

It is an amenable number.

243203341441 is a deficient number, since it is larger than the sum of its proper divisors (356081711).

243203341441 is an equidigital number, since it uses as much as digits as its factorization.

243203341441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356081710.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 243203341441 its reverse (144143302342), we get a palindrome (387346643783).

The spelling of 243203341441 in words is "two hundred forty-three billion, two hundred three million, three hundred forty-one thousand, four hundred forty-one".