423423331 has 4 divisors (see below), whose sum is σ = 428783200. Its totient is φ = 418063464.

The previous prime is 423423293. The next prime is 423423349. The reversal of 423423331 is 133324324.

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

It is a cyclic number.

It is not a de Polignac number, because 423423331 - 2¹⁵ = 423390563 is a prime.

It is a super-2 number, since 2×423423331² = 358574634470271122, 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 = 423423296 and 423423305.

It is not an unprimeable number, because it can be changed into a prime (423421331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2679816 + ... + 2679973.

It is an arithmetic number, because the mean of its divisors is an integer number (107195800).

Almost surely, 2^423423331 is an apocalyptic number.

423423331 is a deficient number, since it is larger than the sum of its proper divisors (5359869).

423423331 is an equidigital number, since it uses as much as digits as its factorization.

423423331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5359868.

The product of its digits is 5184, while the sum is 25.

The square root of 423423331 is about 20577.2527563813. The cubic root of 423423331 is about 750.9164092841.

Adding to 423423331 its reverse (133324324), we get a palindrome (556747655).

The spelling of 423423331 in words is "four hundred twenty-three million, four hundred twenty-three thousand, three hundred thirty-one".