312023303 has 2 divisors, whose sum is σ = 312023304. Its totient is φ = 312023302.

The previous prime is 312023297. The next prime is 312023323. The reversal of 312023303 is 303320213.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312023303 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312023323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156011651 + 156011652.

It is an arithmetic number, because the mean of its divisors is an integer number (156011652).

Almost surely, 2^312023303 is an apocalyptic number.

312023303 is a deficient number, since it is larger than the sum of its proper divisors (1).

312023303 is an equidigital number, since it uses as much as digits as its factorization.

312023303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 312023303 is about 17664.1813566324. The cubic root of 312023303 is about 678.2591739517.

Adding to 312023303 its reverse (303320213), we get a palindrome (615343516).

The spelling of 312023303 in words is "three hundred twelve million, twenty-three thousand, three hundred three".