423205031 has 8 divisors (see below), whose sum is σ = 452129280. Its totient is φ = 394945848.

The previous prime is 423205019. The next prime is 423205051. The reversal of 423205031 is 130502324.

It is a happy number.

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 423205031 - 2²² = 419010727 is a prime.

It is a super-2 number, since 2×423205031² = 358204996527421922, 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 = 423204994 and 423205012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423205051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164951 + ... + 167496.

It is an arithmetic number, because the mean of its divisors is an integer number (56516160).

Almost surely, 2^423205031 is an apocalyptic number.

423205031 is a deficient number, since it is larger than the sum of its proper divisors (28924249).

423205031 is a wasteful number, since it uses less digits than its factorization.

423205031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332533.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 423205031 is about 20571.9476715259. The cubic root of 423205031 is about 750.7873396909.

Adding to 423205031 its reverse (130502324), we get a palindrome (553707355).

The spelling of 423205031 in words is "four hundred twenty-three million, two hundred five thousand, thirty-one".