423023223021 has 16 divisors (see below), whose sum is σ = 678533491200. Its totient is φ = 229005052848.

The previous prime is 423023223013. The next prime is 423023223023. The reversal of 423023223021 is 120322320324.

It is not a de Polignac number, because 423023223021 - 2³ = 423023223013 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 423023222982 and 423023223000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423023223023) 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 15 ways as a sum of consecutive naturals, for example, 530103891 + ... + 530104688.

It is an arithmetic number, because the mean of its divisors is an integer number (42408343200).

Almost surely, 2^423023223021 is an apocalyptic number.

It is an amenable number.

423023223021 is a deficient number, since it is larger than the sum of its proper divisors (255510268179).

423023223021 is a wasteful number, since it uses less digits than its factorization.

423023223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060208608.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 423023223021 its reverse (120322320324), we get a palindrome (543345543345).

The spelling of 423023223021 in words is "four hundred twenty-three billion, twenty-three million, two hundred twenty-three thousand, twenty-one".