11072321 has 8 divisors (see below), whose sum is σ = 12625704. Its totient is φ = 9619200.

The previous prime is 11072317. The next prime is 11072333. The reversal of 11072321 is 12327011.

It can be written as a sum of positive squares in 4 ways, for example, as 215296 + 10857025 = 464^2 + 3295^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11072321 - 2² = 11072317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 11072321.

It is not an unprimeable number, because it can be changed into a prime (11072381) 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, 24830 + ... + 25271.

It is an arithmetic number, because the mean of its divisors is an integer number (1578213).

Almost surely, 2^11072321 is an apocalyptic number.

It is an amenable number.

11072321 is a deficient number, since it is larger than the sum of its proper divisors (1553383).

11072321 is a wasteful number, since it uses less digits than its factorization.

11072321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50131.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 11072321 is about 3327.5097295124. The cubic root of 11072321 is about 222.8843401382.

Adding to 11072321 its reverse (12327011), we get a palindrome (23399332).

The spelling of 11072321 in words is "eleven million, seventy-two thousand, three hundred twenty-one".