243432113 has 2 divisors, whose sum is σ = 243432114. Its totient is φ = 243432112.

The previous prime is 243432107. The next prime is 243432121. The reversal of 243432113 is 311234342.

243432113 = 11032² + 11033².

243432113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121727089 + 121705024 = 11033^2 + 11032^2 .

It is a cyclic number.

It is not a de Polignac number, because 243432113 - 2⁴ = 243432097 is a prime.

It is not a weakly prime, because it can be changed into another prime (243432103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121716056 + 121716057.

It is an arithmetic number, because the mean of its divisors is an integer number (121716057).

Almost surely, 2^243432113 is an apocalyptic number.

243432113 is the 11033-rd centered square number.

It is an amenable number.

243432113 is a deficient number, since it is larger than the sum of its proper divisors (1).

243432113 is an equidigital number, since it uses as much as digits as its factorization.

243432113 is an evil number, because the sum of its binary digits is even.

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

The square root of 243432113 is about 15602.3111429044. The cubic root of 243432113 is about 624.3948172887.

Adding to 243432113 its reverse (311234342), we get a palindrome (554666455).

The spelling of 243432113 in words is "two hundred forty-three million, four hundred thirty-two thousand, one hundred thirteen".