243352213045069 has 2 divisors, whose sum is σ = 243352213045070. Its totient is φ = 243352213045068.

The previous prime is 243352213045063. The next prime is 243352213045199. The reversal of 243352213045069 is 960540312253342.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227142425850025 + 16209787195044 = 15071245^2 + 4026138^2 .

It is a cyclic number.

It is not a de Polignac number, because 243352213045069 - 2¹¹ = 243352213043021 is a prime.

It is a super-2 number, since 2×243352213045069² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243352213045063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121676106522534 + 121676106522535.

It is an arithmetic number, because the mean of its divisors is an integer number (121676106522535).

Almost surely, 2^{243352213045069} is an apocalyptic number.

It is an amenable number.

243352213045069 is a deficient number, since it is larger than the sum of its proper divisors (1).

243352213045069 is an equidigital number, since it uses as much as digits as its factorization.

243352213045069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4665600, while the sum is 49.

The spelling of 243352213045069 in words is "two hundred forty-three trillion, three hundred fifty-two billion, two hundred thirteen million, forty-five thousand, sixty-nine".