243421015345 has 8 divisors (see below), whose sum is σ = 292177779264. Its totient is φ = 194688438384.

The previous prime is 243421015309. The next prime is 243421015349. The reversal of 243421015345 is 543510124342.

243421015345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243421015345 - 2⁹ = 243421014833 is a prime.

It is a super-3 number, since 3×243421015345³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243421015345.

It is not an unprimeable number, because it can be changed into a prime (243421015349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6024589 + ... + 6064858.

It is an arithmetic number, because the mean of its divisors is an integer number (36522222408).

Almost surely, 2^243421015345 is an apocalyptic number.

It is an amenable number.

243421015345 is a deficient number, since it is larger than the sum of its proper divisors (48756763919).

243421015345 is a wasteful number, since it uses less digits than its factorization.

243421015345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12093479.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 243421015345 its reverse (543510124342), we get a palindrome (786931139687).

The spelling of 243421015345 in words is "two hundred forty-three billion, four hundred twenty-one million, fifteen thousand, three hundred forty-five".