312420323 has 4 divisors (see below), whose sum is σ = 312637680. Its totient is φ = 312202968.

The previous prime is 312420313. The next prime is 312420331. The reversal of 312420323 is 323024213.

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 312420323 - 2⁶ = 312420259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312420295 and 312420304.

It is not an unprimeable number, because it can be changed into a prime (312420313) 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, 106508 + ... + 109401.

It is an arithmetic number, because the mean of its divisors is an integer number (78159420).

Almost surely, 2^312420323 is an apocalyptic number.

312420323 is a deficient number, since it is larger than the sum of its proper divisors (217357).

312420323 is a wasteful number, since it uses less digits than its factorization.

312420323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217356.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 312420323 is about 17675.4157801167. The cubic root of 312420323 is about 678.5467254724.

Adding to 312420323 its reverse (323024213), we get a palindrome (635444536).

The spelling of 312420323 in words is "three hundred twelve million, four hundred twenty thousand, three hundred twenty-three".