303623423 has 2 divisors, whose sum is σ = 303623424. Its totient is φ = 303623422.

The previous prime is 303623407. The next prime is 303623527. The reversal of 303623423 is 324326303.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 303623423 - 2⁴ = 303623407 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 303623392 and 303623401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (303623923) 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 as a sum of consecutive naturals, namely, 151811711 + 151811712.

It is an arithmetic number, because the mean of its divisors is an integer number (151811712).

Almost surely, 2^303623423 is an apocalyptic number.

303623423 is a deficient number, since it is larger than the sum of its proper divisors (1).

303623423 is an equidigital number, since it uses as much as digits as its factorization.

303623423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 26.

The square root of 303623423 is about 17424.7933416727. The cubic root of 303623423 is about 672.1173257153.

Adding to 303623423 its reverse (324326303), we get a palindrome (627949726).

The spelling of 303623423 in words is "three hundred three million, six hundred twenty-three thousand, four hundred twenty-three".