4243012313 has 2 divisors, whose sum is σ = 4243012314. Its totient is φ = 4243012312.

The previous prime is 4243012297. The next prime is 4243012321. The reversal of 4243012313 is 3132103424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2285126809 + 1957885504 = 47803^2 + 44248^2 .

It is a cyclic number.

It is not a de Polignac number, because 4243012313 - 2⁴ = 4243012297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4243012363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121506156 + 2121506157.

It is an arithmetic number, because the mean of its divisors is an integer number (2121506157).

Almost surely, 2^4243012313 is an apocalyptic number.

It is an amenable number.

4243012313 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243012313 is an equidigital number, since it uses as much as digits as its factorization.

4243012313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 4243012313 is about 65138.4088921429. The cubic root of 4243012313 is about 1618.9176727515.

Adding to 4243012313 its reverse (3132103424), we get a palindrome (7375115737).

The spelling of 4243012313 in words is "four billion, two hundred forty-three million, twelve thousand, three hundred thirteen".