243054213243 has 8 divisors (see below), whose sum is σ = 335247190800. Its totient is φ = 156448688928.

The previous prime is 243054213223. The next prime is 243054213257. The reversal of 243054213243 is 342312450342.

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

It is not a de Polignac number, because 243054213243 - 2²¹ = 243052116091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243054213223) 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, 1396863208 + ... + 1396863381.

It is an arithmetic number, because the mean of its divisors is an integer number (41905898850).

Almost surely, 2^243054213243 is an apocalyptic number.

243054213243 is a deficient number, since it is larger than the sum of its proper divisors (92192977557).

243054213243 is a wasteful number, since it uses less digits than its factorization.

243054213243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2793726621.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 243054213243 its reverse (342312450342), we get a palindrome (585366663585).

The spelling of 243054213243 in words is "two hundred forty-three billion, fifty-four million, two hundred thirteen thousand, two hundred forty-three".