423210423 has 4 divisors (see below), whose sum is σ = 564280568. Its totient is φ = 282140280.

The previous prime is 423210413. The next prime is 423210433. The reversal of 423210423 is 324012324.

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

It is an interprime number because it is at equal distance from previous prime (423210413) and next prime (423210433).

It is not a de Polignac number, because 423210423 - 2⁴ = 423210407 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423210423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423210413) 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, 70535068 + ... + 70535073.

It is an arithmetic number, because the mean of its divisors is an integer number (141070142).

Almost surely, 2^423210423 is an apocalyptic number.

423210423 is a deficient number, since it is larger than the sum of its proper divisors (141070145).

423210423 is a wasteful number, since it uses less digits than its factorization.

423210423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141070144.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 423210423 is about 20572.0787233571. The cubic root of 423210423 is about 750.7905282385.

Adding to 423210423 its reverse (324012324), we get a palindrome (747222747).

The spelling of 423210423 in words is "four hundred twenty-three million, two hundred ten thousand, four hundred twenty-three".