1121332203 has 12 divisors (see below), whose sum is σ = 1624880920. Its totient is φ = 745164576.

The previous prime is 1121332187. The next prime is 1121332207. The reversal of 1121332203 is 3022331211.

It is not a de Polignac number, because 1121332203 - 2⁴ = 1121332187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121332207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196213 + ... + 201846.

Almost surely, 2^1121332203 is an apocalyptic number.

1121332203 is a deficient number, since it is larger than the sum of its proper divisors (503548717).

1121332203 is a wasteful number, since it uses less digits than its factorization.

1121332203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398378 (or 398375 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1121332203 is about 33486.2987354530. The cubic root of 1121332203 is about 1038.9104105688.

Adding to 1121332203 its reverse (3022331211), we get a palindrome (4143663414).

The spelling of 1121332203 in words is "one billion, one hundred twenty-one million, three hundred thirty-two thousand, two hundred three".