243120354227 has 2 divisors, whose sum is σ = 243120354228. Its totient is φ = 243120354226.

The previous prime is 243120354187. The next prime is 243120354383. The reversal of 243120354227 is 722453021342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243120354227 - 2³⁰ = 242046612403 is a prime.

It is not a weakly prime, because it can be changed into another prime (243120354727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121560177113 + 121560177114.

It is an arithmetic number, because the mean of its divisors is an integer number (121560177114).

Almost surely, 2^243120354227 is an apocalyptic number.

243120354227 is a deficient number, since it is larger than the sum of its proper divisors (1).

243120354227 is an equidigital number, since it uses as much as digits as its factorization.

243120354227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 35.

Adding to 243120354227 its reverse (722453021342), we get a palindrome (965573375569).

The spelling of 243120354227 in words is "two hundred forty-three billion, one hundred twenty million, three hundred fifty-four thousand, two hundred twenty-seven".