243122421410149 has 2 divisors, whose sum is σ = 243122421410150. Its totient is φ = 243122421410148.

The previous prime is 243122421410051. The next prime is 243122421410161. The reversal of 243122421410149 is 941014124221342.

243122421410149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 243009126562500 + 113294847649 = 15588750^2 + 336593^2 .

It is a cyclic number.

It is not a de Polignac number, because 243122421410149 - 2⁴³ = 234326328387941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243122421410249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121561210705074 + 121561210705075.

It is an arithmetic number, because the mean of its divisors is an integer number (121561210705075).

Almost surely, 2^{243122421410149} is an apocalyptic number.

It is an amenable number.

243122421410149 is a deficient number, since it is larger than the sum of its proper divisors (1).

243122421410149 is an equidigital number, since it uses as much as digits as its factorization.

243122421410149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 243122421410149 in words is "two hundred forty-three trillion, one hundred twenty-two billion, four hundred twenty-one million, four hundred ten thousand, one hundred forty-nine".