312500303 has 4 divisors (see below), whose sum is σ = 312764760. Its totient is φ = 312235848.

The previous prime is 312500291. The next prime is 312500329. The reversal of 312500303 is 303005213.

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 312500303 - 2¹⁸ = 312238159 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 (312500803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130448 + ... + 132821.

It is an arithmetic number, because the mean of its divisors is an integer number (78191190).

Almost surely, 2^312500303 is an apocalyptic number.

312500303 is a deficient number, since it is larger than the sum of its proper divisors (264457).

312500303 is a wasteful number, since it uses less digits than its factorization.

312500303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264456.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 312500303 is about 17677.6780997958. The cubic root of 312500303 is about 678.6046234736.

Adding to 312500303 its reverse (303005213), we get a palindrome (615505516).

The spelling of 312500303 in words is "three hundred twelve million, five hundred thousand, three hundred three".