321120323 has 4 divisors (see below), whose sum is σ = 328952568. Its totient is φ = 313288080.

The previous prime is 321120307. The next prime is 321120379. The reversal of 321120323 is 323021123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321120323 - 2⁴ = 321120307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321120623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3916061 + ... + 3916142.

It is an arithmetic number, because the mean of its divisors is an integer number (82238142).

Almost surely, 2^321120323 is an apocalyptic number.

321120323 is a deficient number, since it is larger than the sum of its proper divisors (7832245).

321120323 is an equidigital number, since it uses as much as digits as its factorization.

321120323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7832244.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 321120323 is about 17919.8304400460. The cubic root of 321120323 is about 684.7876678637.

Adding to 321120323 its reverse (323021123), we get a palindrome (644141446).

The spelling of 321120323 in words is "three hundred twenty-one million, one hundred twenty thousand, three hundred twenty-three".