11078321 has 2 divisors, whose sum is σ = 11078322. Its totient is φ = 11078320.

The previous prime is 11078317. The next prime is 11078359. The reversal of 11078321 is 12387011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10962721 + 115600 = 3311^2 + 340^2 .

It is a cyclic number.

It is not a de Polignac number, because 11078321 - 2² = 11078317 is a prime.

It is not a weakly prime, because it can be changed into another prime (11078021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5539160 + 5539161.

It is an arithmetic number, because the mean of its divisors is an integer number (5539161).

Almost surely, 2^11078321 is an apocalyptic number.

It is an amenable number.

11078321 is a deficient number, since it is larger than the sum of its proper divisors (1).

11078321 is an equidigital number, since it uses as much as digits as its factorization.

11078321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 11078321 is about 3328.4111825314. The cubic root of 11078321 is about 222.9245926006.

The spelling of 11078321 in words is "eleven million, seventy-eight thousand, three hundred twenty-one".