243243123341 has 4 divisors (see below), whose sum is σ = 248418508992. Its totient is φ = 238067737692.

The previous prime is 243243123311. The next prime is 243243123443. The reversal of 243243123341 is 143321342342.

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 a de Polignac number, because none of the positive numbers 2^k-243243123341 is a prime.

It is a super-3 number, since 3×243243123341³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243243123298 and 243243123307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243243123311) 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, 2587692755 + ... + 2587692848.

It is an arithmetic number, because the mean of its divisors is an integer number (62104627248).

Almost surely, 2^243243123341 is an apocalyptic number.

It is an amenable number.

243243123341 is a deficient number, since it is larger than the sum of its proper divisors (5175385651).

243243123341 is an equidigital number, since it uses as much as digits as its factorization.

243243123341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5175385650.

The product of its digits is 41472, while the sum is 32.

Adding to 243243123341 its reverse (143321342342), we get a palindrome (386564465683).

The spelling of 243243123341 in words is "two hundred forty-three billion, two hundred forty-three million, one hundred twenty-three thousand, three hundred forty-one".