243104310377 has 2 divisors, whose sum is σ = 243104310378. Its totient is φ = 243104310376.

The previous prime is 243104310313. The next prime is 243104310389. The reversal of 243104310377 is 773013401342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 239619061081 + 3485249296 = 489509^2 + 59036^2 .

It is a cyclic number.

It is not a de Polignac number, because 243104310377 - 2⁶ = 243104310313 is a prime.

It is not a weakly prime, because it can be changed into another prime (243104310677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121552155188 + 121552155189.

It is an arithmetic number, because the mean of its divisors is an integer number (121552155189).

Almost surely, 2^243104310377 is an apocalyptic number.

It is an amenable number.

243104310377 is a deficient number, since it is larger than the sum of its proper divisors (1).

243104310377 is an equidigital number, since it uses as much as digits as its factorization.

243104310377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 35.

The spelling of 243104310377 in words is "two hundred forty-three billion, one hundred four million, three hundred ten thousand, three hundred seventy-seven".