11330891 has 32 divisors (see below), whose sum is σ = 14515200. Its totient is φ = 8686080.

The previous prime is 11330827. The next prime is 11330899. The reversal of 11330891 is 19803311.

It is not a de Polignac number, because 11330891 - 2⁶ = 11330827 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11330891.

It is not an unprimeable number, because it can be changed into a prime (11330899) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 143390 + ... + 143468.

It is an arithmetic number, because the mean of its divisors is an integer number (453600).

Almost surely, 2^11330891 is an apocalyptic number.

11330891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11330891 is a deficient number, since it is larger than the sum of its proper divisors (3184309).

11330891 is a wasteful number, since it uses less digits than its factorization.

11330891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 11330891 is about 3366.1388860236. The cubic root of 11330891 is about 224.6060001775.

It can be divided in two parts, 11330 and 891, that added together give a palindrome (12221).

The spelling of 11330891 in words is "eleven million, three hundred thirty thousand, eight hundred ninety-one".