423535231 has 4 divisors (see below), whose sum is σ = 484040272. Its totient is φ = 363030192.

The previous prime is 423535201. The next prime is 423535267. The reversal of 423535231 is 132535324.

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

It is not a de Polignac number, because 423535231 - 2⁵ = 423535199 is a prime.

It is a super-2 number, since 2×423535231² = 358764183796446722, which contains 22 as substring.

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 423535231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423535201) 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, 30252510 + ... + 30252523.

It is an arithmetic number, because the mean of its divisors is an integer number (121010068).

Almost surely, 2^423535231 is an apocalyptic number.

423535231 is a deficient number, since it is larger than the sum of its proper divisors (60505041).

423535231 is an equidigital number, since it uses as much as digits as its factorization.

423535231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60505040.

The product of its digits is 10800, while the sum is 28.

The square root of 423535231 is about 20579.9715986199. The cubic root of 423535231 is about 750.9825528171.

The spelling of 423535231 in words is "four hundred twenty-three million, five hundred thirty-five thousand, two hundred thirty-one".