420321224023 has 4 divisors (see below), whose sum is σ = 422750826648. Its totient is φ = 417891621400.

The previous prime is 420321223963. The next prime is 420321224027. The reversal of 420321224023 is 320422123024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420321224023 - 2³⁷ = 282882270551 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 (420321224027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1214801053 + ... + 1214801398.

It is an arithmetic number, because the mean of its divisors is an integer number (105687706662).

Almost surely, 2^420321224023 is an apocalyptic number.

420321224023 is a deficient number, since it is larger than the sum of its proper divisors (2429602625).

420321224023 is a wasteful number, since it uses less digits than its factorization.

420321224023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429602624.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 420321224023 its reverse (320422123024), we get a palindrome (740743347047).

The spelling of 420321224023 in words is "four hundred twenty billion, three hundred twenty-one million, two hundred twenty-four thousand, twenty-three".