1131044133 has 16 divisors (see below), whose sum is σ = 1524962816. Its totient is φ = 745599600.

The previous prime is 1131044077. The next prime is 1131044147. The reversal of 1131044133 is 3314401311.

It is not a de Polignac number, because 1131044133 - 2⁹ = 1131043621 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 (1131044333) 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, 240858 + ... + 245508.

It is an arithmetic number, because the mean of its divisors is an integer number (95310176).

Almost surely, 2^1131044133 is an apocalyptic number.

It is an amenable number.

1131044133 is a deficient number, since it is larger than the sum of its proper divisors (393918683).

1131044133 is a wasteful number, since it uses less digits than its factorization.

1131044133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5544.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1131044133 is about 33630.9995837174. Note that the first 3 decimals coincide. The cubic root of 1131044133 is about 1041.9011493153.

Adding to 1131044133 its reverse (3314401311), we get a palindrome (4445445444).

The spelling of 1131044133 in words is "one billion, one hundred thirty-one million, forty-four thousand, one hundred thirty-three".