243016457042041 has 2 divisors, whose sum is σ = 243016457042042. Its totient is φ = 243016457042040.

The previous prime is 243016457041973. The next prime is 243016457042057. The reversal of 243016457042041 is 140240754610342.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160544104360000 + 82472352682041 = 12670600^2 + 9081429^2 .

It is a cyclic number.

It is not a de Polignac number, because 243016457042041 - 2³⁹ = 242466701228153 is a prime.

It is not a weakly prime, because it can be changed into another prime (243016497042041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121508228521020 + 121508228521021.

It is an arithmetic number, because the mean of its divisors is an integer number (121508228521021).

Almost surely, 2^{243016457042041} is an apocalyptic number.

It is an amenable number.

243016457042041 is a deficient number, since it is larger than the sum of its proper divisors (1).

243016457042041 is an equidigital number, since it uses as much as digits as its factorization.

243016457042041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 43.

The spelling of 243016457042041 in words is "two hundred forty-three trillion, sixteen billion, four hundred fifty-seven million, forty-two thousand, forty-one".