1103220243 has 24 divisors (see below), whose sum is σ = 1667226288. Its totient is φ = 728953344.

The previous prime is 1103220179. The next prime is 1103220247. The reversal of 1103220243 is 3420223011.

It is not a de Polignac number, because 1103220243 - 2⁶ = 1103220179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1103220247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7371 + ... + 47547.

It is an arithmetic number, because the mean of its divisors is an integer number (69467762).

Almost surely, 2^1103220243 is an apocalyptic number.

1103220243 is a deficient number, since it is larger than the sum of its proper divisors (564006045).

1103220243 is an equidigital number, since it uses as much as digits as its factorization.

1103220243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40305 (or 40293 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1103220243 is about 33214.7594150552. The cubic root of 1103220243 is about 1033.2864652231.

Adding to 1103220243 its reverse (3420223011), we get a palindrome (4523443254).

The spelling of 1103220243 in words is "one billion, one hundred three million, two hundred twenty thousand, two hundred forty-three".