423931303 has 2 divisors, whose sum is σ = 423931304. Its totient is φ = 423931302.

The previous prime is 423931217. The next prime is 423931351. The reversal of 423931303 is 303139324.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423931303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423931393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211965651 + 211965652.

It is an arithmetic number, because the mean of its divisors is an integer number (211965652).

Almost surely, 2^423931303 is an apocalyptic number.

423931303 is a deficient number, since it is larger than the sum of its proper divisors (1).

423931303 is an equidigital number, since it uses as much as digits as its factorization.

423931303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 423931303 is about 20589.5921037790. The cubic root of 423931303 is about 751.2165754511.

The spelling of 423931303 in words is "four hundred twenty-three million, nine hundred thirty-one thousand, three hundred three".