243310240513 has 16 divisors (see below), whose sum is σ = 258275122560. Its totient is φ = 228418258176.

The previous prime is 243310240477. The next prime is 243310240519. The reversal of 243310240513 is 315042013342.

It is a happy number.

It is not a de Polignac number, because 243310240513 - 2³³ = 234720305921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243310240519) 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, 29441620 + ... + 29449882.

It is an arithmetic number, because the mean of its divisors is an integer number (16142195160).

Almost surely, 2^243310240513 is an apocalyptic number.

It is an amenable number.

243310240513 is a deficient number, since it is larger than the sum of its proper divisors (14964882047).

243310240513 is a wasteful number, since it uses less digits than its factorization.

243310240513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12456.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 243310240513 its reverse (315042013342), we get a palindrome (558352253855).

The spelling of 243310240513 in words is "two hundred forty-three billion, three hundred ten million, two hundred forty thousand, five hundred thirteen".