423313044021 has 24 divisors (see below), whose sum is σ = 698890570560. Its totient is φ = 241862677056.

The previous prime is 423313044001. The next prime is 423313044041. The reversal of 423313044021 is 120440313324.

423313044021 is a `hidden beast` number, since 4 + 2 + 331 + 304 + 4 + 0 + 21 = 666.

423313044021 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (423313044001) and next prime (423313044041).

It is not a de Polignac number, because 423313044021 - 2¹¹ = 423313041973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423313044001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85086 + ... + 924048.

It is an arithmetic number, because the mean of its divisors is an integer number (29120440440).

Almost surely, 2^423313044021 is an apocalyptic number.

It is an amenable number.

423313044021 is a deficient number, since it is larger than the sum of its proper divisors (275577526539).

423313044021 is a wasteful number, since it uses less digits than its factorization.

423313044021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846985 (or 846982 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 423313044021 its reverse (120440313324), we get a palindrome (543753357345).

The spelling of 423313044021 in words is "four hundred twenty-three billion, three hundred thirteen million, forty-four thousand, twenty-one".