243305435013 has 16 divisors (see below), whose sum is σ = 325379438400. Its totient is φ = 161717834880.

The previous prime is 243305434991. The next prime is 243305435041. The reversal of 243305435013 is 310534503342.

It is not a de Polignac number, because 243305435013 - 2⁶ = 243305434949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243305435213) 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 15 ways as a sum of consecutive naturals, for example, 3270753 + ... + 3344313.

It is an arithmetic number, because the mean of its divisors is an integer number (20336214900).

Almost surely, 2^243305435013 is an apocalyptic number.

It is an amenable number.

243305435013 is a deficient number, since it is larger than the sum of its proper divisors (82074003387).

243305435013 is a wasteful number, since it uses less digits than its factorization.

243305435013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76852.

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 243305435013 its reverse (310534503342), we get a palindrome (553839938355).

The spelling of 243305435013 in words is "two hundred forty-three billion, three hundred five million, four hundred thirty-five thousand, thirteen".