11133530 has 16 divisors (see below), whose sum is σ = 20079360. Its totient is φ = 4444752.

The previous prime is 11133481. The next prime is 11133539. The reversal of 11133530 is 3533111.

11133530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11133499 and 11133508.

It is not an unprimeable number, because it can be changed into a prime (11133539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7727 + ... + 9053.

It is an arithmetic number, because the mean of its divisors is an integer number (1254960).

Almost surely, 2^11133530 is an apocalyptic number.

11133530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11133530 is a deficient number, since it is larger than the sum of its proper divisors (8945830).

11133530 is a wasteful number, since it uses less digits than its factorization.

11133530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173.

The product of its (nonzero) digits is 135, while the sum is 17.

The square root of 11133530 is about 3336.6944720786. The cubic root of 11133530 is about 223.2942952979.

Adding to 11133530 its reverse (3533111), we get a palindrome (14666641).

The spelling of 11133530 in words is "eleven million, one hundred thirty-three thousand, five hundred thirty".