423313031 has 4 divisors (see below), whose sum is σ = 428413272. Its totient is φ = 418212792.

The previous prime is 423313013. The next prime is 423313043. The reversal of 423313031 is 130313324.

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 423313031 - 2²² = 419118727 is a prime.

It is a super-2 number, since 2×423313031² = 358387844428813922, 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 = 423312994 and 423313012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423313061) 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, 2549996 + ... + 2550161.

It is an arithmetic number, because the mean of its divisors is an integer number (107103318).

Almost surely, 2^423313031 is an apocalyptic number.

423313031 is a deficient number, since it is larger than the sum of its proper divisors (5100241).

423313031 is an equidigital number, since it uses as much as digits as its factorization.

423313031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100240.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 423313031 is about 20574.5724378418. The cubic root of 423313031 is about 750.8512000976.

Adding to 423313031 its reverse (130313324), we get a palindrome (553626355).

The spelling of 423313031 in words is "four hundred twenty-three million, three hundred thirteen thousand, thirty-one".