11281322 has 16 divisors (see below), whose sum is σ = 18302760. Its totient is φ = 5184192.

The previous prime is 11281321. The next prime is 11281343. The reversal of 11281322 is 22318211.

It can be written as a sum of positive squares in 4 ways, for example, as 5612161 + 5669161 = 2369^2 + 2381^2 .

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11281294 and 11281303.

It is not an unprimeable number, because it can be changed into a prime (11281321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6188 + ... + 7800.

Almost surely, 2^11281322 is an apocalyptic number.

11281322 is a deficient number, since it is larger than the sum of its proper divisors (7021438).

11281322 is a wasteful number, since it uses less digits than its factorization.

11281322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897.

The product of its digits is 192, while the sum is 20.

The square root of 11281322 is about 3358.7679288692. The cubic root of 11281322 is about 224.2779950939.

Adding to 11281322 its reverse (22318211), we get a palindrome (33599533).

The spelling of 11281322 in words is "eleven million, two hundred eighty-one thousand, three hundred twenty-two".