4243030261 has 2 divisors, whose sum is σ = 4243030262. Its totient is φ = 4243030260.

The previous prime is 4243030217. The next prime is 4243030283. The reversal of 4243030261 is 1620303424.

4243030261 is digitally balanced in base 3, 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., 2489012100 + 1754018161 = 49890^2 + 41881^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4243030261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4243039261) 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, 2121515130 + 2121515131.

It is an arithmetic number, because the mean of its divisors is an integer number (2121515131).

Almost surely, 2^4243030261 is an apocalyptic number.

It is an amenable number.

4243030261 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243030261 is an equidigital number, since it uses as much as digits as its factorization.

4243030261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 4243030261 is about 65138.5466601766. The cubic root of 4243030261 is about 1618.9199554296.

Adding to 4243030261 its reverse (1620303424), we get a palindrome (5863333685).

The spelling of 4243030261 in words is "four billion, two hundred forty-three million, thirty thousand, two hundred sixty-one".