1131041203 has 4 divisors (see below), whose sum is σ = 1131199720. Its totient is φ = 1130882688.

The previous prime is 1131041201. The next prime is 1131041207. The reversal of 1131041203 is 3021401311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3021401311 = 7487 ⋅403553.

It is a cyclic number.

It is not a de Polignac number, because 1131041203 - 2¹ = 1131041201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131041201) 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, 68025 + ... + 83002.

It is an arithmetic number, because the mean of its divisors is an integer number (282799930).

Almost surely, 2^1131041203 is an apocalyptic number.

1131041203 is a deficient number, since it is larger than the sum of its proper divisors (158517).

1131041203 is an equidigital number, since it uses as much as digits as its factorization.

1131041203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158516.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1131041203 is about 33630.9560226884. The cubic root of 1131041203 is about 1041.9002496236.

Adding to 1131041203 its reverse (3021401311), we get a palindrome (4152442514).

The spelling of 1131041203 in words is "one billion, one hundred thirty-one million, forty-one thousand, two hundred three".