1423003 has 2 divisors, whose sum is σ = 1423004. Its totient is φ = 1423002.

The previous prime is 1422991. The next prime is 1423039. The reversal of 1423003 is 3003241.

It is a weak prime.

It is an emirp because it is prime and its reverse (3003241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1423003 - 2¹⁷ = 1291931 is a prime.

It is not a weakly prime, because it can be changed into another prime (1423073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711501 + 711502.

It is an arithmetic number, because the mean of its divisors is an integer number (711502).

2^1423003 is an apocalyptic number.

1423003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423003 is an equidigital number, since it uses as much as digits as its factorization.

1423003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1423003 is about 1192.8968941195. The cubic root of 1423003 is about 112.4782641135.

Adding to 1423003 its reverse (3003241), we get a palindrome (4426244).

It can be divided in two parts, 142 and 3003, that multiplied together give a triangular number (426426 = T₉₂₃).

The spelling of 1423003 in words is "one million, four hundred twenty-three thousand, three".