423531003 has 32 divisors (see below), whose sum is σ = 664505856. Its totient is φ = 234943488.

The previous prime is 423531001. The next prime is 423531007. The reversal of 423531003 is 300135324.

It is not a de Polignac number, because 423531003 - 2¹ = 423531001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (423531001) 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, 106000 + ... + 109922.

It is an arithmetic number, because the mean of its divisors is an integer number (20765808).

Almost surely, 2^423531003 is an apocalyptic number.

423531003 is a deficient number, since it is larger than the sum of its proper divisors (240974853).

423531003 is a wasteful number, since it uses less digits than its factorization.

423531003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4083.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 423531003 is about 20579.8688771333. The cubic root of 423531003 is about 750.9800538791.

Adding to 423531003 its reverse (300135324), we get a palindrome (723666327).

The spelling of 423531003 in words is "four hundred twenty-three million, five hundred thirty-one thousand, three".