243730024513 has 4 divisors (see below), whose sum is σ = 256557920560. Its totient is φ = 230902128468.

The previous prime is 243730024481. The next prime is 243730024519. The reversal of 243730024513 is 315420037342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243730024513 - 2⁵ = 243730024481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243730024519) 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 3 ways as a sum of consecutive naturals, for example, 6413947995 + ... + 6413948032.

It is an arithmetic number, because the mean of its divisors is an integer number (64139480140).

Almost surely, 2^243730024513 is an apocalyptic number.

It is an amenable number.

243730024513 is a deficient number, since it is larger than the sum of its proper divisors (12827896047).

243730024513 is a wasteful number, since it uses less digits than its factorization.

243730024513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12827896046.

The product of its (nonzero) digits is 60480, while the sum is 34.

The spelling of 243730024513 in words is "two hundred forty-three billion, seven hundred thirty million, twenty-four thousand, five hundred thirteen".