243440124441 has 4 divisors (see below), whose sum is σ = 324586832592. Its totient is φ = 162293416292.

The previous prime is 243440124427. The next prime is 243440124463. The reversal of 243440124441 is 144421044342.

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 243440124441 - 2¹⁹ = 243439600153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243440124341) 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, 40573354071 + ... + 40573354076.

It is an arithmetic number, because the mean of its divisors is an integer number (81146708148).

Almost surely, 2^243440124441 is an apocalyptic number.

It is an amenable number.

243440124441 is a deficient number, since it is larger than the sum of its proper divisors (81146708151).

243440124441 is an equidigital number, since it uses as much as digits as its factorization.

243440124441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81146708150.

The product of its (nonzero) digits is 49152, while the sum is 33.

Adding to 243440124441 its reverse (144421044342), we get a palindrome (387861168783).

The spelling of 243440124441 in words is "two hundred forty-three billion, four hundred forty million, one hundred twenty-four thousand, four hundred forty-one".