319242403 has 2 divisors, whose sum is σ = 319242404. Its totient is φ = 319242402.

The previous prime is 319242379. The next prime is 319242409. The reversal of 319242403 is 304242913.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-319242403 is a prime.

It is not a weakly prime, because it can be changed into another prime (319242409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159621201 + 159621202.

It is an arithmetic number, because the mean of its divisors is an integer number (159621202).

Almost surely, 2^319242403 is an apocalyptic number.

319242403 is a deficient number, since it is larger than the sum of its proper divisors (1).

319242403 is an equidigital number, since it uses as much as digits as its factorization.

319242403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 319242403 is about 17867.3557920583. The cubic root of 319242403 is about 683.4501718649.

The spelling of 319242403 in words is "three hundred nineteen million, two hundred forty-two thousand, four hundred three".