1230321 has 8 divisors (see below), whose sum is σ = 1665184. Its totient is φ = 807840.

The previous prime is 1230311. The next prime is 1230329.

It is a happy number.

1230321 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 1230321 - 2¹⁰ = 1229297 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1230297 and 1230306.

It is not an unprimeable number, because it can be changed into a prime (1230329) 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, 2860 + ... + 3261.

It is an arithmetic number, because the mean of its divisors is an integer number (208148).

2^1230321 is an apocalyptic number.

It is an amenable number.

1230321 is a deficient number, since it is larger than the sum of its proper divisors (434863).

1230321 is an equidigital number, since it uses as much as digits as its factorization.

1230321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6191.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1230321 is about 1109.1983591766. The cubic root of 1230321 is about 107.1534468263.

It can be divided in two parts, 1230 and 321, that added together give a palindrome (1551).

The spelling of 1230321 in words is "one million, two hundred thirty thousand, three hundred twenty-one".