1130321 has 2 divisors, whose sum is σ = 1130322. Its totient is φ = 1130320.

The previous prime is 1130317. The next prime is 1130351. The reversal of 1130321 is 1230311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1000000 + 130321 = 1000^2 + 361^2 .

It is an emirp because it is prime and its reverse (1230311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1130321 - 2² = 1130317 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1130351) 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 as a sum of consecutive naturals, namely, 565160 + 565161.

It is an arithmetic number, because the mean of its divisors is an integer number (565161).

2^1130321 is an apocalyptic number.

It is an amenable number.

1130321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1130321 is an equidigital number, since it uses as much as digits as its factorization.

1130321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1130321 is about 1063.1655562517. The cubic root of 1130321 is about 104.1679055497.

Adding to 1130321 its reverse (1230311), we get a palindrome (2360632).

The spelling of 1130321 in words is "one million, one hundred thirty thousand, three hundred twenty-one".