243441113 has 2 divisors, whose sum is σ = 243441114. Its totient is φ = 243441112.

The previous prime is 243441043. The next prime is 243441127. The reversal of 243441113 is 311144342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242020249 + 1420864 = 15557^2 + 1192^2 .

It is a cyclic number.

It is not a de Polignac number, because 243441113 - 2¹⁰ = 243440089 is a prime.

It is not a weakly prime, because it can be changed into another prime (243441193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121720556 + 121720557.

It is an arithmetic number, because the mean of its divisors is an integer number (121720557).

Almost surely, 2^243441113 is an apocalyptic number.

It is an amenable number.

243441113 is a deficient number, since it is larger than the sum of its proper divisors (1).

243441113 is an equidigital number, since it uses as much as digits as its factorization.

243441113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

The square root of 243441113 is about 15602.5995590478. The cubic root of 243441113 is about 624.4025120885.

Adding to 243441113 its reverse (311144342), we get a palindrome (554585455).

The spelling of 243441113 in words is "two hundred forty-three million, four hundred forty-one thousand, one hundred thirteen".