243423230435039 has 2 divisors, whose sum is σ = 243423230435040. Its totient is φ = 243423230435038.

The previous prime is 243423230435027. The next prime is 243423230435093. The reversal of 243423230435039 is 930534032324342.

Together with next prime (243423230435093) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243423230435039 - 2¹⁶ = 243423230369503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243423230434984 and 243423230435002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243423230435009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121711615217519 + 121711615217520.

It is an arithmetic number, because the mean of its divisors is an integer number (121711615217520).

Almost surely, 2^{243423230435039} is an apocalyptic number.

243423230435039 is a deficient number, since it is larger than the sum of its proper divisors (1).

243423230435039 is an equidigital number, since it uses as much as digits as its factorization.

243423230435039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5598720, while the sum is 47.

The spelling of 243423230435039 in words is "two hundred forty-three trillion, four hundred twenty-three billion, two hundred thirty million, four hundred thirty-five thousand, thirty-nine".