312143323 has 4 divisors (see below), whose sum is σ = 312355288. Its totient is φ = 311931360.

The previous prime is 312143317. The next prime is 312143333. The reversal of 312143323 is 323341213.

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 312143323 - 2¹⁷ = 312012251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312143294 and 312143303.

It is not an unprimeable number, because it can be changed into a prime (312143303) 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, 103758 + ... + 106723.

It is an arithmetic number, because the mean of its divisors is an integer number (78088822).

Almost surely, 2^312143323 is an apocalyptic number.

312143323 is a deficient number, since it is larger than the sum of its proper divisors (211965).

312143323 is a wasteful number, since it uses less digits than its factorization.

312143323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211964.

The product of its digits is 1296, while the sum is 22.

The square root of 312143323 is about 17667.5783003784. The cubic root of 312143323 is about 678.3461271056.

Adding to 312143323 its reverse (323341213), we get a palindrome (635484536).

The spelling of 312143323 in words is "three hundred twelve million, one hundred forty-three thousand, three hundred twenty-three".