312231323 has 4 divisors (see below), whose sum is σ = 316891560. Its totient is φ = 307571088.

The previous prime is 312231251. The next prime is 312231331. The reversal of 312231323 is 323132213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323132213 = 3733 ⋅86561.

It is a cyclic number.

It is not a de Polignac number, because 312231323 - 2¹⁰ = 312230299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312231295 and 312231304.

It is not an unprimeable number, because it can be changed into a prime (312230323) 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, 2330018 + ... + 2330151.

It is an arithmetic number, because the mean of its divisors is an integer number (79222890).

Almost surely, 2^312231323 is an apocalyptic number.

312231323 is a deficient number, since it is larger than the sum of its proper divisors (4660237).

312231323 is an equidigital number, since it uses as much as digits as its factorization.

312231323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4660236.

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

The square root of 312231323 is about 17670.0685624024. The cubic root of 312231323 is about 678.4098679643.

Adding to 312231323 its reverse (323132213), we get a palindrome (635363536).

The spelling of 312231323 in words is "three hundred twelve million, two hundred thirty-one thousand, three hundred twenty-three".