423210231 has 32 divisors (see below), whose sum is σ = 644474880. Its totient is φ = 274346208.

The previous prime is 423210217. The next prime is 423210239. The reversal of 423210231 is 132012324.

423210231 is a `hidden beast` number, since 423 + 2 + 10 + 231 = 666.

It is not a de Polignac number, because 423210231 - 2⁹ = 423209719 is a prime.

It is a super-2 number, since 2×423210231² = 358213799246146722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423210239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210925 + ... + 212921.

It is an arithmetic number, because the mean of its divisors is an integer number (20139840).

Almost surely, 2^423210231 is an apocalyptic number.

423210231 is a deficient number, since it is larger than the sum of its proper divisors (221264649).

423210231 is a wasteful number, since it uses less digits than its factorization.

423210231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220 (or 2214 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 423210231 is about 20572.0740568373. The cubic root of 423210231 is about 750.7904147002.

Adding to 423210231 its reverse (132012324), we get a palindrome (555222555).

The spelling of 423210231 in words is "four hundred twenty-three million, two hundred ten thousand, two hundred thirty-one".