312130303 has 4 divisors (see below), whose sum is σ = 318019608. Its totient is φ = 306241000.

The previous prime is 312130283. The next prime is 312130327. The reversal of 312130303 is 303031213.

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 312130303 - 2⁹ = 312129791 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 (312130333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2944573 + ... + 2944678.

It is an arithmetic number, because the mean of its divisors is an integer number (79504902).

Almost surely, 2^312130303 is an apocalyptic number.

312130303 is a deficient number, since it is larger than the sum of its proper divisors (5889305).

312130303 is an equidigital number, since it uses as much as digits as its factorization.

312130303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5889304.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 312130303 is about 17667.2098249837. The cubic root of 312130303 is about 678.3366953385.

Adding to 312130303 its reverse (303031213), we get a palindrome (615161516).

The spelling of 312130303 in words is "three hundred twelve million, one hundred thirty thousand, three hundred three".