1103045403 has 16 divisors (see below), whose sum is σ = 1493331840. Its totient is φ = 724094784.

The previous prime is 1103045401. The next prime is 1103045453. The reversal of 1103045403 is 3045403011.

It is not a de Polignac number, because 1103045403 - 2¹ = 1103045401 is a prime.

It is a super-2 number, since 2×1103045403² = 2433418322158864818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1103045403.

It is not an unprimeable number, because it can be changed into a prime (1103045401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140500 + ... + 148142.

It is an arithmetic number, because the mean of its divisors is an integer number (93333240).

Almost surely, 2^1103045403 is an apocalyptic number.

1103045403 is a deficient number, since it is larger than the sum of its proper divisors (390286437).

1103045403 is an equidigital number, since it uses as much as digits as its factorization.

1103045403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8378.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1103045403 is about 33212.1273483046. The cubic root of 1103045403 is about 1033.2318767426.

Adding to 1103045403 its reverse (3045403011), we get a palindrome (4148448414).

The spelling of 1103045403 in words is "one billion, one hundred three million, forty-five thousand, four hundred three".