423242030421 has 12 divisors (see below), whose sum is σ = 698685256672. Its totient is φ = 241852588776.

The previous prime is 423242030389. The next prime is 423242030507. The reversal of 423242030421 is 124030242324.

423242030421 is a `hidden beast` number, since 4 + 2 + 32 + 4 + 203 + 0 + 421 = 666.

It is not a de Polignac number, because 423242030421 - 2⁵ = 423242030389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423242030621) 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 in 11 ways as a sum of consecutive naturals, for example, 3359063671 + ... + 3359063796.

Almost surely, 2^423242030421 is an apocalyptic number.

It is an amenable number.

423242030421 is a deficient number, since it is larger than the sum of its proper divisors (275443226251).

423242030421 is a wasteful number, since it uses less digits than its factorization.

423242030421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6718127480 (or 6718127477 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 423242030421 its reverse (124030242324), we get a palindrome (547272272745).

The spelling of 423242030421 in words is "four hundred twenty-three billion, two hundred forty-two million, thirty thousand, four hundred twenty-one".