214203321 has 18 divisors (see below), whose sum is σ = 326551290. Its totient is φ = 135284256.

The previous prime is 214203317. The next prime is 214203343. The reversal of 214203321 is 123302412.

It can be written as a sum of positive squares in only one way, i.e., 167417721 + 46785600 = 12939^2 + 6840^2 .

It is not a de Polignac number, because 214203321 - 2² = 214203317 is a prime.

214203321 is a modest number, since divided by 3321 gives 2142 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 214203294 and 214203303.

It is not an unprimeable number, because it can be changed into a prime (214203371) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 29716 + ... + 36213.

Almost surely, 2^214203321 is an apocalyptic number.

It is an amenable number.

214203321 is a deficient number, since it is larger than the sum of its proper divisors (112347969).

214203321 is a wasteful number, since it uses less digits than its factorization.

214203321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65973 (or 65951 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 214203321 is about 14635.6865571793. The cubic root of 214203321 is about 598.3317743373.

Adding to 214203321 its reverse (123302412), we get a palindrome (337505733).

Subtracting from 214203321 its reverse (123302412), we obtain a palindrome (90900909).

The spelling of 214203321 in words is "two hundred fourteen million, two hundred three thousand, three hundred twenty-one".