243011543114161 has 2 divisors, whose sum is σ = 243011543114162. Its totient is φ = 243011543114160.

The previous prime is 243011543114029. The next prime is 243011543114213. The reversal of 243011543114161 is 161411345110342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212676838901136 + 30334704213025 = 14583444^2 + 5507695^2 .

It is a cyclic number.

It is not a de Polignac number, because 243011543114161 - 2⁴¹ = 240812519858609 is a prime.

It is a super-2 number, since 2×243011543114161² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243011543114161.

It is not a weakly prime, because it can be changed into another prime (243011541114161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121505771557080 + 121505771557081.

It is an arithmetic number, because the mean of its divisors is an integer number (121505771557081).

Almost surely, 2^{243011543114161} is an apocalyptic number.

It is an amenable number.

243011543114161 is a deficient number, since it is larger than the sum of its proper divisors (1).

243011543114161 is an equidigital number, since it uses as much as digits as its factorization.

243011543114161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 243011543114161 in words is "two hundred forty-three trillion, eleven billion, five hundred forty-three million, one hundred fourteen thousand, one hundred sixty-one".