11131133 has 4 divisors (see below), whose sum is σ = 11987388. Its totient is φ = 10274880.

The previous prime is 11131123. The next prime is 11131163. The reversal of 11131133 is 33113111.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1006009 + 10125124 = 1003^2 + 3182^2 .

It is a cyclic number.

It is not a de Polignac number, because 11131133 - 2⁶ = 11131069 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 (11131123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428108 + ... + 428133.

It is an arithmetic number, because the mean of its divisors is an integer number (2996847).

Almost surely, 2^11131133 is an apocalyptic number.

11131133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11131133 is a deficient number, since it is larger than the sum of its proper divisors (856255).

11131133 is an equidigital number, since it uses as much as digits as its factorization.

11131133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856254.

The product of its digits is 27, while the sum is 14.

The square root of 11131133 is about 3336.3352649277. The cubic root of 11131133 is about 223.2782693881.

Adding to 11131133 its reverse (33113111), we get a palindrome (44244244).

The spelling of 11131133 in words is "eleven million, one hundred thirty-one thousand, one hundred thirty-three".