1103243203 has 4 divisors (see below), whose sum is σ = 1168139880. Its totient is φ = 1038346528.

The previous prime is 1103243161. The next prime is 1103243209. The reversal of 1103243203 is 3023423011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3023423011 = 7 ⋅431917573.

It is a cyclic number.

It is not a de Polignac number, because 1103243203 - 2⁹ = 1103242691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103243209) 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 3 ways as a sum of consecutive naturals, for example, 32448313 + ... + 32448346.

It is an arithmetic number, because the mean of its divisors is an integer number (292034970).

Almost surely, 2^1103243203 is an apocalyptic number.

1103243203 is a deficient number, since it is larger than the sum of its proper divisors (64896677).

1103243203 is an equidigital number, since it uses as much as digits as its factorization.

1103243203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64896676.

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

The square root of 1103243203 is about 33215.1050427362. The cubic root of 1103243203 is about 1033.2936333574.

Adding to 1103243203 its reverse (3023423011), we get a palindrome (4126666214).

The spelling of 1103243203 in words is "one billion, one hundred three million, two hundred forty-three thousand, two hundred three".