243421301441 has 16 divisors (see below), whose sum is σ = 254895212880. Its totient is φ = 232249835520.

The previous prime is 243421301437. The next prime is 243421301483. The reversal of 243421301441 is 144103124342.

It can be written as a sum of positive squares in 8 ways, for example, as 18365941441 + 225055360000 = 135521^2 + 474400^2 .

It is a cyclic number.

It is not a de Polignac number, because 243421301441 - 2² = 243421301437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243421301491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80081 + ... + 702321.

It is an arithmetic number, because the mean of its divisors is an integer number (15930950805).

Almost surely, 2^243421301441 is an apocalyptic number.

It is an amenable number.

243421301441 is a deficient number, since it is larger than the sum of its proper divisors (11473911439).

243421301441 is a wasteful number, since it uses less digits than its factorization.

243421301441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622484.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 243421301441 its reverse (144103124342), we get a palindrome (387524425783).

The spelling of 243421301441 in words is "two hundred forty-three billion, four hundred twenty-one million, three hundred one thousand, four hundred forty-one".