243340200113 has 2 divisors, whose sum is σ = 243340200114. Its totient is φ = 243340200112.

The previous prime is 243340200109. The next prime is 243340200139. The reversal of 243340200113 is 311002043342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220367341489 + 22972858624 = 469433^2 + 151568^2 .

It is a cyclic number.

It is not a de Polignac number, because 243340200113 - 2² = 243340200109 is a prime.

It is not a weakly prime, because it can be changed into another prime (243340200163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121670100056 + 121670100057.

It is an arithmetic number, because the mean of its divisors is an integer number (121670100057).

Almost surely, 2^243340200113 is an apocalyptic number.

It is an amenable number.

243340200113 is a deficient number, since it is larger than the sum of its proper divisors (1).

243340200113 is an equidigital number, since it uses as much as digits as its factorization.

243340200113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 243340200113 its reverse (311002043342), we get a palindrome (554342243455).

The spelling of 243340200113 in words is "two hundred forty-three billion, three hundred forty million, two hundred thousand, one hundred thirteen".