312328903 has 4 divisors (see below), whose sum is σ = 313333488. Its totient is φ = 311324320.

The previous prime is 312328847. The next prime is 312328921. The reversal of 312328903 is 309823213.

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 312328903 - 2¹³ = 312320711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312328963) 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, 501826 + ... + 502447.

It is an arithmetic number, because the mean of its divisors is an integer number (78333372).

Almost surely, 2^312328903 is an apocalyptic number.

312328903 is a deficient number, since it is larger than the sum of its proper divisors (1004585).

312328903 is a wasteful number, since it uses less digits than its factorization.

312328903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004584.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 312328903 is about 17672.8295131255. The cubic root of 312328903 is about 678.4805338830.

The spelling of 312328903 in words is "three hundred twelve million, three hundred twenty-eight thousand, nine hundred three".