312303 has 8 divisors (see below), whose sum is σ = 438400. Its totient is φ = 197208.

The previous prime is 312289. The next prime is 312311. The reversal of 312303 is 303213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 312303 - 2⁸ = 312047 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 (312313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2683 + ... + 2796.

It is an arithmetic number, because the mean of its divisors is an integer number (54800).

2³¹²³⁰³ is an apocalyptic number.

312303 is a deficient number, since it is larger than the sum of its proper divisors (126097).

312303 is a wasteful number, since it uses less digits than its factorization.

312303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5501.

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 312303 is about 558.8407644401. The cubic root of 312303 is about 67.8461776768.

Adding to 312303 its reverse (303213), we get a palindrome (615516).

The spelling of 312303 in words is "three hundred twelve thousand, three hundred three", and thus it is an iban number.