203213201 has 6 divisors (see below), whose sum is σ = 205824402. Its totient is φ = 200634720.

The previous prime is 203213177. The next prime is 203213207. The reversal of 203213201 is 102312302.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 191130625 + 12082576 = 13825^2 + 3476^2 .

It is not a de Polignac number, because 203213201 - 2⁶ = 203213137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203213207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10040 + ... + 22521.

It is an arithmetic number, because the mean of its divisors is an integer number (34304067).

Almost surely, 2^203213201 is an apocalyptic number.

It is an amenable number.

203213201 is a deficient number, since it is larger than the sum of its proper divisors (2611201).

203213201 is an frugal number, since it uses more digits than its factorization.

203213201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32719 (or 32640 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 203213201 is about 14255.2867736851. The cubic root of 203213201 is about 587.9187427242.

Adding to 203213201 its reverse (102312302), we get a palindrome (305525503).

The spelling of 203213201 in words is "two hundred three million, two hundred thirteen thousand, two hundred one".