11133420 has 24 divisors (see below), whose sum is σ = 31173744. Its totient is φ = 2968896.

The previous prime is 11133413. The next prime is 11133443. The reversal of 11133420 is 2433111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11133420.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92719 + ... + 92838.

It is an arithmetic number, because the mean of its divisors is an integer number (1298906).

Almost surely, 2^11133420 is an apocalyptic number.

11133420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11133420 is an abundant number, since it is smaller than the sum of its proper divisors (20040324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11133420 is a wasteful number, since it uses less digits than its factorization.

11133420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185569 (or 185567 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 11133420 is about 3336.6779886588. The cubic root of 11133420 is about 223.2935599081.

Adding to 11133420 its reverse (2433111), we get a palindrome (13566531).

The spelling of 11133420 in words is "eleven million, one hundred thirty-three thousand, four hundred twenty".