4321003 has 2 divisors, whose sum is σ = 4321004. Its totient is φ = 4321002.

The previous prime is 4320959. The next prime is 4321019. The reversal of 4321003 is 3001234.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4321003 - 2¹³ = 4312811 is a prime.

It is not a weakly prime, because it can be changed into another prime (4321103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2160501 + 2160502.

It is an arithmetic number, because the mean of its divisors is an integer number (2160502).

Almost surely, 2^4321003 is an apocalyptic number.

4321003 is a deficient number, since it is larger than the sum of its proper divisors (1).

4321003 is an equidigital number, since it uses as much as digits as its factorization.

4321003 is an evil number, because the sum of its binary digits is even.

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

The square root of 4321003 is about 2078.7022393792. The cubic root of 4321003 is about 162.8776604688.

Adding to 4321003 its reverse (3001234), we get a palindrome (7322237).

The spelling of 4321003 in words is "four million, three hundred twenty-one thousand, three".