1680338003 has 2 divisors, whose sum is σ = 1680338004. Its totient is φ = 1680338002.

The previous prime is 1680337993. The next prime is 1680338063. The reversal of 1680338003 is 3008330861.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1680338003 - 2¹⁴ = 1680321619 is a prime.

It is not a weakly prime, because it can be changed into another prime (1680338063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 840169001 + 840169002.

It is an arithmetic number, because the mean of its divisors is an integer number (840169002).

Almost surely, 2^1680338003 is an apocalyptic number.

1680338003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1680338003 is an equidigital number, since it uses as much as digits as its factorization.

1680338003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 1680338003 is about 40991.9260708740. The cubic root of 1680338003 is about 1188.8641099467.

Adding to 1680338003 its reverse (3008330861), we get a palindrome (4688668864).

The spelling of 1680338003 in words is "one billion, six hundred eighty million, three hundred thirty-eight thousand, three".