4243938911 has 2 divisors, whose sum is σ = 4243938912. Its totient is φ = 4243938910.

The previous prime is 4243938893. The next prime is 4243938913. The reversal of 4243938911 is 1198393424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4243938911 is a prime.

It is a super-2 number, since 2×4243938911² = 36022034960599731842, which contains 22 as substring.

Together with 4243938913, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4243938913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121969455 + 2121969456.

It is an arithmetic number, because the mean of its divisors is an integer number (2121969456).

Almost surely, 2^4243938911 is an apocalyptic number.

4243938911 is a deficient number, since it is larger than the sum of its proper divisors (1).

4243938911 is an equidigital number, since it uses as much as digits as its factorization.

4243938911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 44.

The square root of 4243938911 is about 65145.5210356015. The cubic root of 4243938911 is about 1619.0355117287.

The spelling of 4243938911 in words is "four billion, two hundred forty-three million, nine hundred thirty-eight thousand, nine hundred eleven".