423231 has 8 divisors (see below), whose sum is σ = 572544. Its totient is φ = 278040.

The previous prime is 423229. The next prime is 423233. The reversal of 423231 is 132324.

It is an interprime number because it is at equal distance from previous prime (423229) and next prime (423233).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 423231 - 2¹ = 423229 is a prime.

It is a super-2 number, since 2×423231² = 358248958722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 423231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423233) 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 7 ways as a sum of consecutive naturals, for example, 781 + ... + 1206.

It is an arithmetic number, because the mean of its divisors is an integer number (71568).

2⁴²³²³¹ is an apocalyptic number.

423231 is a deficient number, since it is larger than the sum of its proper divisors (149313).

423231 is a wasteful number, since it uses less digits than its factorization.

423231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061.

The product of its digits is 144, while the sum is 15.

The square root of 423231 is about 650.5620646795. The cubic root of 423231 is about 75.0802696154.

Adding to 423231 its reverse (132324), we get a palindrome (555555).

It can be divided in two parts, 42323 and 1, that added together give a palindrome (42324).

The spelling of 423231 in words is "four hundred twenty-three thousand, two hundred thirty-one".