312123303 has 6 divisors (see below), whose sum is σ = 450844784. Its totient is φ = 208082196.

The previous prime is 312123257. The next prime is 312123311. The reversal of 312123303 is 303321213.

It is not a de Polignac number, because 312123303 - 2⁶ = 312123239 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 (312123373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17340175 + ... + 17340192.

Almost surely, 2^312123303 is an apocalyptic number.

312123303 is a deficient number, since it is larger than the sum of its proper divisors (138721481).

312123303 is a wasteful number, since it uses less digits than its factorization.

312123303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34680373 (or 34680370 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 312123303 is about 17667.0117167562. The cubic root of 312123303 is about 678.3316243876.

Adding to 312123303 its reverse (303321213), we get a palindrome (615444516).

The spelling of 312123303 in words is "three hundred twelve million, one hundred twenty-three thousand, three hundred three".