232216321 has 8 divisors (see below), whose sum is σ = 235295424. Its totient is φ = 229144080.

The previous prime is 232216307. The next prime is 232216337. The reversal of 232216321 is 123612232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 232216321 - 2⁵ = 232216289 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232216292 and 232216301.

It is not an unprimeable number, because it can be changed into a prime (232216301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132511 + ... + 134251.

It is an arithmetic number, because the mean of its divisors is an integer number (29411928).

Almost surely, 2^232216321 is an apocalyptic number.

It is an amenable number.

232216321 is a deficient number, since it is larger than the sum of its proper divisors (3079103).

232216321 is a wasteful number, since it uses less digits than its factorization.

232216321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3431.

The product of its digits is 864, while the sum is 22.

The square root of 232216321 is about 15238.6456419198. The cubic root of 232216321 is about 614.6542847323.

Adding to 232216321 its reverse (123612232), we get a palindrome (355828553).

The spelling of 232216321 in words is "two hundred thirty-two million, two hundred sixteen thousand, three hundred twenty-one".