1103003443 has 4 divisors (see below), whose sum is σ = 1129906008. Its totient is φ = 1076100880.

The previous prime is 1103003441. The next prime is 1103003459. The reversal of 1103003443 is 3443003011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3443003011 = 7 ⋅491857573.

It is a cyclic number.

It is not a de Polignac number, because 1103003443 - 2¹ = 1103003441 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 1103003443.

It is not an unprimeable number, because it can be changed into a prime (1103003441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13451221 + ... + 13451302.

It is an arithmetic number, because the mean of its divisors is an integer number (282476502).

Almost surely, 2^1103003443 is an apocalyptic number.

1103003443 is a deficient number, since it is larger than the sum of its proper divisors (26902565).

1103003443 is an equidigital number, since it uses as much as digits as its factorization.

1103003443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26902564.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1103003443 is about 33211.4956453334. The cubic root of 1103003443 is about 1033.2187751485.

Subtracting from 1103003443 its product of nonzero digits (432), we obtain a palindrome (1103003011).

Adding to 1103003443 its reverse (3443003011), we get a palindrome (4546006454).

The spelling of 1103003443 in words is "one billion, one hundred three million, three thousand, four hundred forty-three".