243331422043 has 2 divisors, whose sum is σ = 243331422044. Its totient is φ = 243331422042.

The previous prime is 243331421953. The next prime is 243331422067. The reversal of 243331422043 is 340224133342.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243331422043 - 2¹³ = 243331413851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243331421996 and 243331422014.

It is not a weakly prime, because it can be changed into another prime (243331422643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121665711021 + 121665711022.

It is an arithmetic number, because the mean of its divisors is an integer number (121665711022).

Almost surely, 2^243331422043 is an apocalyptic number.

243331422043 is a deficient number, since it is larger than the sum of its proper divisors (1).

243331422043 is an equidigital number, since it uses as much as digits as its factorization.

243331422043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 243331422043 its reverse (340224133342), we get a palindrome (583555555385).

The spelling of 243331422043 in words is "two hundred forty-three billion, three hundred thirty-one million, four hundred twenty-two thousand, forty-three".