103403603 has 2 divisors, whose sum is σ = 103403604. Its totient is φ = 103403602.

The previous prime is 103403581. The next prime is 103403611. The reversal of 103403603 is 306304301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103403603 - 2²⁰ = 102355027 is a prime.

It is a super-2 number, since 2×103403603² = 21384610226763218, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (103403633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51701801 + 51701802.

It is an arithmetic number, because the mean of its divisors is an integer number (51701802).

Almost surely, 2^103403603 is an apocalyptic number.

103403603 is a deficient number, since it is larger than the sum of its proper divisors (1).

103403603 is an equidigital number, since it uses as much as digits as its factorization.

103403603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 103403603 is about 10168.7562169618. The cubic root of 103403603 is about 469.3662849039.

Adding to 103403603 its reverse (306304301), we get a palindrome (409707904).

The spelling of 103403603 in words is "one hundred three million, four hundred three thousand, six hundred three".