1131233303 has 4 divisors (see below), whose sum is σ = 1142895600. Its totient is φ = 1119571008.

The previous prime is 1131233269. The next prime is 1131233351. The reversal of 1131233303 is 3033321311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3033321311 = 7699 ⋅393989.

It is a cyclic number.

It is not a de Polignac number, because 1131233303 - 2⁶ = 1131233239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131233393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5831003 + ... + 5831196.

It is an arithmetic number, because the mean of its divisors is an integer number (285723900).

Almost surely, 2^1131233303 is an apocalyptic number.

1131233303 is a deficient number, since it is larger than the sum of its proper divisors (11662297).

1131233303 is an equidigital number, since it uses as much as digits as its factorization.

1131233303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11662296.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 1131233303 is about 33633.8119011212. The cubic root of 1131233303 is about 1041.9592329471.

Adding to 1131233303 its reverse (3033321311), we get a palindrome (4164554614).

The spelling of 1131233303 in words is "one billion, one hundred thirty-one million, two hundred thirty-three thousand, three hundred three".