312422303 has 2 divisors, whose sum is σ = 312422304. Its totient is φ = 312422302.

The previous prime is 312422291. The next prime is 312422347. The reversal of 312422303 is 303224213.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312422303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312422393) 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 as a sum of consecutive naturals, namely, 156211151 + 156211152.

It is an arithmetic number, because the mean of its divisors is an integer number (156211152).

Almost surely, 2^312422303 is an apocalyptic number.

312422303 is a deficient number, since it is larger than the sum of its proper divisors (1).

312422303 is an equidigital number, since it uses as much as digits as its factorization.

312422303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 312422303 is about 17675.4717900259. The cubic root of 312422303 is about 678.5481589256.

Adding to 312422303 its reverse (303224213), we get a palindrome (615646516).

The spelling of 312422303 in words is "three hundred twelve million, four hundred twenty-two thousand, three hundred three".