243421041301 has 4 divisors (see below), whose sum is σ = 243793815372. Its totient is φ = 243048267232.

The previous prime is 243421041293. The next prime is 243421041313. The reversal of 243421041301 is 103140124342.

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 16435496401 + 226985544900 = 128201^2 + 476430^2 .

It is a cyclic number.

It is not a de Polignac number, because 243421041301 - 2³ = 243421041293 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 (243421041601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186386056 + ... + 186387361.

It is an arithmetic number, because the mean of its divisors is an integer number (60948453843).

Almost surely, 2^243421041301 is an apocalyptic number.

It is an amenable number.

243421041301 is a deficient number, since it is larger than the sum of its proper divisors (372774071).

243421041301 is an equidigital number, since it uses as much as digits as its factorization.

243421041301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372774070.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 243421041301 its reverse (103140124342), we get a palindrome (346561165643).

The spelling of 243421041301 in words is "two hundred forty-three billion, four hundred twenty-one million, forty-one thousand, three hundred one".