243431413307 has 2 divisors, whose sum is σ = 243431413308. Its totient is φ = 243431413306.

The previous prime is 243431413297. The next prime is 243431413333. The reversal of 243431413307 is 703314134342.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243431413307 - 2⁶ = 243431413243 is a prime.

It is not a weakly prime, because it can be changed into another prime (243431413367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121715706653 + 121715706654.

It is an arithmetic number, because the mean of its divisors is an integer number (121715706654).

Almost surely, 2^243431413307 is an apocalyptic number.

243431413307 is a deficient number, since it is larger than the sum of its proper divisors (1).

243431413307 is an equidigital number, since it uses as much as digits as its factorization.

243431413307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 35.

Adding to 243431413307 its reverse (703314134342), we get a palindrome (946745547649).

The spelling of 243431413307 in words is "two hundred forty-three billion, four hundred thirty-one million, four hundred thirteen thousand, three hundred seven".