423313012021 has 16 divisors (see below), whose sum is σ = 451849052160. Its totient is φ = 395182368000.

The previous prime is 423313011983. The next prime is 423313012061. The reversal of 423313012021 is 120210313324.

It is a cyclic number.

It is not a de Polignac number, because 423313012021 - 2²⁵ = 423279457589 is a prime.

It is a super-2 number, since 2×423313012021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423313011983 and 423313012001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423313012061) 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 in 15 ways as a sum of consecutive naturals, for example, 10236775 + ... + 10278043.

It is an arithmetic number, because the mean of its divisors is an integer number (28240565760).

Almost surely, 2^423313012021 is an apocalyptic number.

It is an amenable number.

423313012021 is a deficient number, since it is larger than the sum of its proper divisors (28536040139).

423313012021 is a wasteful number, since it uses less digits than its factorization.

423313012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46164.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 423313012021 its reverse (120210313324), we get a palindrome (543523325345).

The spelling of 423313012021 in words is "four hundred twenty-three billion, three hundred thirteen million, twelve thousand, twenty-one".