312321304 has 16 divisors (see below), whose sum is σ = 594343800. Its totient is φ = 153829632.

The previous prime is 312321293. The next prime is 312321307. The reversal of 312321304 is 403123213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312321307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290809 + ... + 291880.

Almost surely, 2^312321304 is an apocalyptic number.

It is an amenable number.

312321304 is a deficient number, since it is larger than the sum of its proper divisors (282022496).

312321304 is a wasteful number, since it uses less digits than its factorization.

312321304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582762 (or 582758 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 312321304 is about 17672.6145207776. The cubic root of 312321304 is about 678.4750313339.

Adding to 312321304 its reverse (403123213), we get a palindrome (715444517).

The spelling of 312321304 in words is "three hundred twelve million, three hundred twenty-one thousand, three hundred four".