243342233140421 has 8 divisors (see below), whose sum is σ = 256380692714400. Its totient is φ = 230326870928400.

The previous prime is 243342233140393. The next prime is 243342233140451. The reversal of 243342233140421 is 124041332243342.

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 243342233140421 - 2³⁸ = 243067355233477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243342233140451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5774318855 + ... + 5774360996.

It is an arithmetic number, because the mean of its divisors is an integer number (32047586589300).

Almost surely, 2^{243342233140421} is an apocalyptic number.

It is an amenable number.

243342233140421 is a deficient number, since it is larger than the sum of its proper divisors (13038459573979).

243342233140421 is a wasteful number, since it uses less digits than its factorization.

243342233140421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11548680979.

The product of its (nonzero) digits is 331776, while the sum is 38.

Adding to 243342233140421 its reverse (124041332243342), we get a palindrome (367383565383763).

The spelling of 243342233140421 in words is "two hundred forty-three trillion, three hundred forty-two billion, two hundred thirty-three million, one hundred forty thousand, four hundred twenty-one".