1131443033 has 16 divisors (see below), whose sum is σ = 1340350080. Its totient is φ = 934488576.

The previous prime is 1131443029. The next prime is 1131443039. The reversal of 1131443033 is 3303441311.

It is not a de Polignac number, because 1131443033 - 2² = 1131443029 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131443039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100841 + ... + 111497.

It is an arithmetic number, because the mean of its divisors is an integer number (83771880).

Almost surely, 2^1131443033 is an apocalyptic number.

It is an amenable number.

1131443033 is a deficient number, since it is larger than the sum of its proper divisors (208907047).

1131443033 is a wasteful number, since it uses less digits than its factorization.

1131443033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11216.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 1131443033 is about 33636.9296012582. The cubic root of 1131443033 is about 1042.0236218478.

Adding to 1131443033 its reverse (3303441311), we get a palindrome (4434884344).

The spelling of 1131443033 in words is "one billion, one hundred thirty-one million, four hundred forty-three thousand, thirty-three".