243235133243 has 16 divisors (see below), whose sum is σ = 248761221120. Its totient is φ = 237756940800.

The previous prime is 243235133227. The next prime is 243235133249. The reversal of 243235133243 is 342331532342.

It is a cyclic number.

It is not a de Polignac number, because 243235133243 - 2⁴ = 243235133227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243235133249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44701403 + ... + 44706843.

It is an arithmetic number, because the mean of its divisors is an integer number (15547576320).

Almost surely, 2^243235133243 is an apocalyptic number.

243235133243 is a deficient number, since it is larger than the sum of its proper divisors (5526087877).

243235133243 is a wasteful number, since it uses less digits than its factorization.

243235133243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9658.

The product of its digits is 155520, while the sum is 35.

Adding to 243235133243 its reverse (342331532342), we get a palindrome (585566665585).

The spelling of 243235133243 in words is "two hundred forty-three billion, two hundred thirty-five million, one hundred thirty-three thousand, two hundred forty-three".