312231423 has 8 divisors (see below), whose sum is σ = 475781248. Its totient is φ = 178417944.

The previous prime is 312231421. The next prime is 312231467. The reversal of 312231423 is 324132213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312231423 - 2¹ = 312231421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 14868163 = 312231423 / (3 + 1 + 2 + 2 + 3 + 1 + 4 + 2 + 3).

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 312231423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312231421) 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 7 ways as a sum of consecutive naturals, for example, 7434061 + ... + 7434102.

It is an arithmetic number, because the mean of its divisors is an integer number (59472656).

Almost surely, 2^312231423 is an apocalyptic number.

312231423 is a deficient number, since it is larger than the sum of its proper divisors (163549825).

312231423 is a wasteful number, since it uses less digits than its factorization.

312231423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14868173.

The product of its digits is 864, while the sum is 21.

The square root of 312231423 is about 17670.0713920459. The cubic root of 312231423 is about 678.4099403903.

Adding to 312231423 its reverse (324132213), we get a palindrome (636363636).

The spelling of 312231423 in words is "three hundred twelve million, two hundred thirty-one thousand, four hundred twenty-three".