305113232257 has 2 divisors, whose sum is σ = 305113232258. Its totient is φ = 305113232256.

The previous prime is 305113232251. The next prime is 305113232327. The reversal of 305113232257 is 752232311503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214377334081 + 90735898176 = 463009^2 + 301224^2 .

It is a cyclic number.

It is not a de Polignac number, because 305113232257 - 2⁷ = 305113232129 is a prime.

It is not a weakly prime, because it can be changed into another prime (305113232251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152556616128 + 152556616129.

It is an arithmetic number, because the mean of its divisors is an integer number (152556616129).

Almost surely, 2^305113232257 is an apocalyptic number.

It is an amenable number.

305113232257 is a deficient number, since it is larger than the sum of its proper divisors (1).

305113232257 is an equidigital number, since it uses as much as digits as its factorization.

305113232257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 34.

The spelling of 305113232257 in words is "three hundred five billion, one hundred thirteen million, two hundred thirty-two thousand, two hundred fifty-seven".