420230023 has 4 divisors (see below), whose sum is σ = 420529680. Its totient is φ = 419930368.

The previous prime is 420230003. The next prime is 420230059. The reversal of 420230023 is 320032024.

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 420230023 - 2¹³ = 420221831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420229979 and 420230006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420230003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147715 + ... + 150532.

It is an arithmetic number, because the mean of its divisors is an integer number (105132420).

Almost surely, 2^420230023 is an apocalyptic number.

420230023 is a deficient number, since it is larger than the sum of its proper divisors (299657).

420230023 is a wasteful number, since it uses less digits than its factorization.

420230023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299656.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 420230023 is about 20499.5127503070. The cubic root of 420230023 is about 749.0239290800.

Adding to 420230023 its reverse (320032024), we get a palindrome (740262047).

It can be divided in two parts, 4202 and 30023, that added together give a square (34225 = 185²).

The spelling of 420230023 in words is "four hundred twenty million, two hundred thirty thousand, twenty-three".