1131232203 has 32 divisors (see below), whose sum is σ = 1824960000. Its totient is φ = 689816736.

The previous prime is 1131232187. The next prime is 1131232213. The reversal of 1131232203 is 3022321311.

It is not a de Polignac number, because 1131232203 - 2⁴ = 1131232187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131232213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23143 + ... + 52896.

It is an arithmetic number, because the mean of its divisors is an integer number (57030000).

Almost surely, 2^1131232203 is an apocalyptic number.

1131232203 is a deficient number, since it is larger than the sum of its proper divisors (693727797).

1131232203 is a wasteful number, since it uses less digits than its factorization.

1131232203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76096 (or 76090 counting only the distinct ones).

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

The square root of 1131232203 is about 33633.7955485253. The cubic root of 1131232203 is about 1041.9588952168.

Adding to 1131232203 its reverse (3022321311), we get a palindrome (4153553514).

The spelling of 1131232203 in words is "one billion, one hundred thirty-one million, two hundred thirty-two thousand, two hundred three".