423031231 has 8 divisors (see below), whose sum is σ = 484151840. Its totient is φ = 362082528.

The previous prime is 423031183. The next prime is 423031243. The reversal of 423031231 is 132130324.

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

It is a cyclic number.

It is not a de Polignac number, because 423031231 - 2⁹ = 423030719 is a prime.

It is a super-2 number, since 2×423031231² = 357910844802750722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423031199 and 423031208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423031261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37656 + ... + 47581.

It is an arithmetic number, because the mean of its divisors is an integer number (60518980).

Almost surely, 2^423031231 is an apocalyptic number.

423031231 is a deficient number, since it is larger than the sum of its proper divisors (61120609).

423031231 is an equidigital number, since it uses as much as digits as its factorization.

423031231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85953.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 423031231 is about 20567.7230387809. The cubic root of 423031231 is about 750.6845489262.

Adding to 423031231 its reverse (132130324), we get a palindrome (555161555).

It can be divided in two parts, 42303 and 1231, that added together give a palindrome (43534).

The spelling of 423031231 in words is "four hundred twenty-three million, thirty-one thousand, two hundred thirty-one".