243423300031 has 2 divisors, whose sum is σ = 243423300032. Its totient is φ = 243423300030.

The previous prime is 243423300023. The next prime is 243423300059. The reversal of 243423300031 is 130003324342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243423300031 - 2³ = 243423300023 is a prime.

It is a super-2 number, since 2×243423300031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243423299969 and 243423300005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243423303031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121711650015 + 121711650016.

It is an arithmetic number, because the mean of its divisors is an integer number (121711650016).

Almost surely, 2^243423300031 is an apocalyptic number.

243423300031 is a deficient number, since it is larger than the sum of its proper divisors (1).

243423300031 is an equidigital number, since it uses as much as digits as its factorization.

243423300031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 243423300031 its reverse (130003324342), we get a palindrome (373426624373).

The spelling of 243423300031 in words is "two hundred forty-three billion, four hundred twenty-three million, three hundred thousand, thirty-one".