1131332203 has 4 divisors (see below), whose sum is σ = 1133401000. Its totient is φ = 1129263408.

The previous prime is 1131332177. The next prime is 1131332221. The reversal of 1131332203 is 3022331311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3022331311 = 19 ⋅159070069.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131332203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131332273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1033578 + ... + 1034671.

It is an arithmetic number, because the mean of its divisors is an integer number (283350250).

Almost surely, 2^1131332203 is an apocalyptic number.

1131332203 is a deficient number, since it is larger than the sum of its proper divisors (2068797).

1131332203 is an equidigital number, since it uses as much as digits as its factorization.

1131332203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068796.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1131332203 is about 33635.2821156594. The cubic root of 1131332203 is about 1041.9895970830.

Adding to 1131332203 its reverse (3022331311), we get a palindrome (4153663514).

The spelling of 1131332203 in words is "one billion, one hundred thirty-one million, three hundred thirty-two thousand, two hundred three".