1133243311 has 4 divisors (see below), whose sum is σ = 1139115232. Its totient is φ = 1127371392.

The previous prime is 1133243263. The next prime is 1133243317. The reversal of 1133243311 is 1133423311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1133243311 - 2¹⁹ = 1132719023 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 (1133243317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2935671 + ... + 2936056.

It is an arithmetic number, because the mean of its divisors is an integer number (284778808).

Almost surely, 2^1133243311 is an apocalyptic number.

1133243311 is a deficient number, since it is larger than the sum of its proper divisors (5871921).

1133243311 is an equidigital number, since it uses as much as digits as its factorization.

1133243311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5871920.

The product of its digits is 648, while the sum is 22.

The square root of 1133243311 is about 33663.6794037728. The cubic root of 1133243311 is about 1042.5759955488.

Adding to 1133243311 its reverse (1133423311), we get a palindrome (2266666622).

The spelling of 1133243311 in words is "one billion, one hundred thirty-three million, two hundred forty-three thousand, three hundred eleven".