232303221 has 10 divisors (see below), whose sum is σ = 347020982. Its totient is φ = 154868760.

The previous prime is 232303207. The next prime is 232303273. The reversal of 232303221 is 122303232.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 132503121 + 99800100 = 11511^2 + 9990^2 .

It is not a de Polignac number, because 232303221 - 2⁹ = 232302709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 232303194 and 232303203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232303121) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1433890 + ... + 1434051.

Almost surely, 2^232303221 is an apocalyptic number.

It is an amenable number.

232303221 is a deficient number, since it is larger than the sum of its proper divisors (114717761).

232303221 is an equidigital number, since it uses as much as digits as its factorization.

232303221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867953 (or 2867944 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 232303221 is about 15241.4966784762. The cubic root of 232303221 is about 614.7309471531.

Adding to 232303221 its reverse (122303232), we get a palindrome (354606453).

The spelling of 232303221 in words is "two hundred thirty-two million, three hundred three thousand, two hundred twenty-one".