233201321 has 4 divisors (see below), whose sum is σ = 234409812. Its totient is φ = 231992832.

The previous prime is 233201303. The next prime is 233201323. The reversal of 233201321 is 123102332.

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

It can be written as a sum of positive squares in 2 ways, for example, as 121793296 + 111408025 = 11036^2 + 10555^2 .

It is a cyclic number.

It is not a de Polignac number, because 233201321 - 2²⁶ = 166092457 is a prime.

It is a super-2 number, since 2×233201321² = 108765712232290082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 233201321.

It is not an unprimeable number, because it can be changed into a prime (233201323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 603956 + ... + 604341.

It is an arithmetic number, because the mean of its divisors is an integer number (58602453).

Almost surely, 2^233201321 is an apocalyptic number.

It is an amenable number.

233201321 is a deficient number, since it is larger than the sum of its proper divisors (1208491).

233201321 is a wasteful number, since it uses less digits than its factorization.

233201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208490.

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

The square root of 233201321 is about 15270.9305872301. The cubic root of 233201321 is about 615.5221256154.

Adding to 233201321 its reverse (123102332), we get a palindrome (356303653).

The spelling of 233201321 in words is "two hundred thirty-three million, two hundred one thousand, three hundred twenty-one".