243140424203 has 2 divisors, whose sum is σ = 243140424204. Its totient is φ = 243140424202.

The previous prime is 243140424143. The next prime is 243140424257. The reversal of 243140424203 is 302424041342.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243140424203 is a prime.

It is a super-2 number, since 2×243140424203² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (243140424803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121570212101 + 121570212102.

It is an arithmetic number, because the mean of its divisors is an integer number (121570212102).

Almost surely, 2^243140424203 is an apocalyptic number.

243140424203 is a deficient number, since it is larger than the sum of its proper divisors (1).

243140424203 is an equidigital number, since it uses as much as digits as its factorization.

243140424203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 243140424203 its reverse (302424041342), we get a palindrome (545564465545).

The spelling of 243140424203 in words is "two hundred forty-three billion, one hundred forty million, four hundred twenty-four thousand, two hundred three".