242451323161 has 2 divisors, whose sum is σ = 242451323162. Its totient is φ = 242451323160.

The previous prime is 242451323099. The next prime is 242451323239. The reversal of 242451323161 is 161323154242.

242451323161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156847681600 + 85603641561 = 396040^2 + 292581^2 .

It is a cyclic number.

It is not a de Polignac number, because 242451323161 - 2²³ = 242442934553 is a prime.

It is not a weakly prime, because it can be changed into another prime (242451320161) 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, 121225661580 + 121225661581.

It is an arithmetic number, because the mean of its divisors is an integer number (121225661581).

Almost surely, 2^242451323161 is an apocalyptic number.

It is an amenable number.

242451323161 is a deficient number, since it is larger than the sum of its proper divisors (1).

242451323161 is an equidigital number, since it uses as much as digits as its factorization.

242451323161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The spelling of 242451323161 in words is "two hundred forty-two billion, four hundred fifty-one million, three hundred twenty-three thousand, one hundred sixty-one".