214330321 has 2 divisors, whose sum is σ = 214330322. Its totient is φ = 214330320.

The previous prime is 214330313. The next prime is 214330343. The reversal of 214330321 is 123033412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199120321 + 15210000 = 14111^2 + 3900^2 .

It is a cyclic number.

It is not a de Polignac number, because 214330321 - 2³ = 214330313 is a prime.

It is not a weakly prime, because it can be changed into another prime (214330301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107165160 + 107165161.

It is an arithmetic number, because the mean of its divisors is an integer number (107165161).

Almost surely, 2^214330321 is an apocalyptic number.

It is an amenable number.

214330321 is a deficient number, since it is larger than the sum of its proper divisors (1).

214330321 is an equidigital number, since it uses as much as digits as its factorization.

214330321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 214330321 is about 14640.0246242962. The cubic root of 214330321 is about 598.4500002084.

Adding to 214330321 its reverse (123033412), we get a palindrome (337363733).

The spelling of 214330321 in words is "two hundred fourteen million, three hundred thirty thousand, three hundred twenty-one".