232243421 has 2 divisors, whose sum is σ = 232243422. Its totient is φ = 232243420.

The previous prime is 232243391. The next prime is 232243433. The reversal of 232243421 is 124342232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231952900 + 290521 = 15230^2 + 539^2 .

It is a cyclic number.

It is not a de Polignac number, because 232243421 - 2¹⁰ = 232242397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232243321) 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 as a sum of consecutive naturals, namely, 116121710 + 116121711.

It is an arithmetic number, because the mean of its divisors is an integer number (116121711).

Almost surely, 2^232243421 is an apocalyptic number.

It is an amenable number.

232243421 is a deficient number, since it is larger than the sum of its proper divisors (1).

232243421 is an equidigital number, since it uses as much as digits as its factorization.

232243421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 23.

The square root of 232243421 is about 15239.5348026113. The cubic root of 232243421 is about 614.6781941675.

Adding to 232243421 its reverse (124342232), we get a palindrome (356585653).

The spelling of 232243421 in words is "two hundred thirty-two million, two hundred forty-three thousand, four hundred twenty-one".