1103403447 has 12 divisors (see below), whose sum is σ = 1596574720. Its totient is φ = 734323968.

The previous prime is 1103403419. The next prime is 1103403451. The reversal of 1103403447 is 7443043011.

It is not a de Polignac number, because 1103403447 - 2¹⁹ = 1102879159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1103403447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103403047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101047 + ... + 111432.

Almost surely, 2^1103403447 is an apocalyptic number.

1103403447 is a deficient number, since it is larger than the sum of its proper divisors (493171273).

1103403447 is a wasteful number, since it uses less digits than its factorization.

1103403447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213062 (or 213059 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 1103403447 is about 33217.5171709145. The cubic root of 1103403447 is about 1033.3436589210.

Adding to 1103403447 its reverse (7443043011), we get a palindrome (8546446458).

It can be divided in two parts, 1103 and 403447, that added together give a triangular number (404550 = T₈₉₉).

The spelling of 1103403447 in words is "one billion, one hundred three million, four hundred three thousand, four hundred forty-seven".