1103331203 has 16 divisors (see below), whose sum is σ = 1199234400. Its totient is φ = 1015054560.

The previous prime is 1103331193. The next prime is 1103331221. The reversal of 1103331203 is 3021333011.

It is not a de Polignac number, because 1103331203 - 2¹⁸ = 1103069059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1103331223) 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, 853988 + ... + 855278.

It is an arithmetic number, because the mean of its divisors is an integer number (74952150).

Almost surely, 2^1103331203 is an apocalyptic number.

1103331203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1103331203 is a deficient number, since it is larger than the sum of its proper divisors (95903197).

1103331203 is an equidigital number, since it uses as much as digits as its factorization.

1103331203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719 (or 1693 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1103331203 is about 33216.4297148264. The cubic root of 1103331203 is about 1033.3211061219.

Adding to 1103331203 its reverse (3021333011), we get a palindrome (4124664214).

The spelling of 1103331203 in words is "one billion, one hundred three million, three hundred thirty-one thousand, two hundred three".