423340010039987 has 2 divisors, whose sum is σ = 423340010039988. Its totient is φ = 423340010039986.

The previous prime is 423340010039941. The next prime is 423340010040047. The reversal of 423340010039987 is 789930010043324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 423340010039987 - 2¹⁸ = 423340009777843 is a prime.

It is a super-2 number, since 2×423340010039987² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (423340010038987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211670005019993 + 211670005019994.

It is an arithmetic number, because the mean of its divisors is an integer number (211670005019994).

Almost surely, 2^{423340010039987} is an apocalyptic number.

423340010039987 is a deficient number, since it is larger than the sum of its proper divisors (1).

423340010039987 is an equidigital number, since it uses as much as digits as its factorization.

423340010039987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 423340010039987 in words is "four hundred twenty-three trillion, three hundred forty billion, ten million, thirty-nine thousand, nine hundred eighty-seven".