1120321 has 2 divisors, whose sum is σ = 1120322.
Its totient is φ = 1120320.
The previous prime is 1120319. The next prime is 1120337. The reversal of 1120321 is 1230211.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1050625 + 69696 = 1025^2 + 264^2
It is a cyclic number.
It is not a de Polignac number, because 1120321 - 21 = 1120319 is a prime.
Together with 1120319, it forms a pair of twin primes.
It is a junction number, because it is equal to n+sod(n) for n = 1120298 and 1120307.
It is not a weakly prime, because it can be changed into another prime (1120391) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560160 + 560161.
It is an arithmetic number, because the mean of its divisors is an integer number (560161).
21120321 is an apocalyptic number.
It is an amenable number.
1120321 is a deficient number, since it is larger than the sum of its proper divisors (1).
1120321 is an equidigital number, since it uses as much as digits as its factorization.
1120321 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 12, while the sum is 10.
The square root of 1120321 is about 1058.4521718056.
The cubic root of 1120321 is about 103.8598024620.
Adding to 1120321 its reverse (1230211), we get a palindrome (2350532).
It can be divided in two parts, 1120 and 321, that added together give a palindrome (1441).
The spelling of 1120321 in words is "one million, one hundred twenty thousand, three hundred twenty-one".