423430523699 has 2 divisors, whose sum is σ = 423430523700. Its totient is φ = 423430523698.

The previous prime is 423430523669. The next prime is 423430523717. The reversal of 423430523699 is 996325034324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423430523699 - 2⁸ = 423430523443 is a prime.

It is not a weakly prime, because it can be changed into another prime (423430523669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211715261849 + 211715261850.

It is an arithmetic number, because the mean of its divisors is an integer number (211715261850).

Almost surely, 2^423430523699 is an apocalyptic number.

423430523699 is a deficient number, since it is larger than the sum of its proper divisors (1).

423430523699 is an equidigital number, since it uses as much as digits as its factorization.

423430523699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4199040, while the sum is 50.

The spelling of 423430523699 in words is "four hundred twenty-three billion, four hundred thirty million, five hundred twenty-three thousand, six hundred ninety-nine".