423623303 has 2 divisors, whose sum is σ = 423623304. Its totient is φ = 423623302.

The previous prime is 423623287. The next prime is 423623309. The reversal of 423623303 is 303326324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423623303 - 2⁴ = 423623287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423623309) 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, 211811651 + 211811652.

It is an arithmetic number, because the mean of its divisors is an integer number (211811652).

Almost surely, 2^423623303 is an apocalyptic number.

423623303 is a deficient number, since it is larger than the sum of its proper divisors (1).

423623303 is an equidigital number, since it uses as much as digits as its factorization.

423623303 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 423623303 is about 20582.1112376743. Note that the first 3 decimals coincide. The cubic root of 423623303 is about 751.0346035451.

Adding to 423623303 its reverse (303326324), we get a palindrome (726949627).

The spelling of 423623303 in words is "four hundred twenty-three million, six hundred twenty-three thousand, three hundred three".