1131204133 has 2 divisors, whose sum is σ = 1131204134. Its totient is φ = 1131204132.

The previous prime is 1131204119. The next prime is 1131204169. The reversal of 1131204133 is 3314021311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1029254724 + 101949409 = 32082^2 + 10097^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131204133 - 2²⁵ = 1097649701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1131204133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131204233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565602066 + 565602067.

It is an arithmetic number, because the mean of its divisors is an integer number (565602067).

Almost surely, 2^1131204133 is an apocalyptic number.

It is an amenable number.

1131204133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131204133 is an equidigital number, since it uses as much as digits as its factorization.

1131204133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1131204133 is about 33633.3782573205. The cubic root of 1131204133 is about 1041.9502768777.

Adding to 1131204133 its reverse (3314021311), we get a palindrome (4445225444).

The spelling of 1131204133 in words is "one billion, one hundred thirty-one million, two hundred four thousand, one hundred thirty-three".