1123511133 has 8 divisors (see below), whose sum is σ = 1513458688. Its totient is φ = 741285504.

The previous prime is 1123511131. The next prime is 1123511143. The reversal of 1123511133 is 3311153211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1123511133 - 2¹ = 1123511131 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 (1123511131) 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 7 ways as a sum of consecutive naturals, for example, 1930141 + ... + 1930722.

It is an arithmetic number, because the mean of its divisors is an integer number (189182336).

Almost surely, 2^1123511133 is an apocalyptic number.

It is an amenable number.

1123511133 is a deficient number, since it is larger than the sum of its proper divisors (389947555).

1123511133 is an equidigital number, since it uses as much as digits as its factorization.

1123511133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3860963.

The product of its digits is 270, while the sum is 21.

The square root of 1123511133 is about 33518.8175954940. The cubic root of 1123511133 is about 1039.5828988769.

Adding to 1123511133 its reverse (3311153211), we get a palindrome (4434664344).

The spelling of 1123511133 in words is "one billion, one hundred twenty-three million, five hundred eleven thousand, one hundred thirty-three".