232321213 has 2 divisors, whose sum is σ = 232321214. Its totient is φ = 232321212.

The previous prime is 232321171. The next prime is 232321231. The reversal of 232321213 is 312123232.

Together with next prime (232321231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231861529 + 459684 = 15227^2 + 678^2 .

It is a cyclic number.

It is not a de Polignac number, because 232321213 - 2¹³ = 232313021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232321253) 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, 116160606 + 116160607.

It is an arithmetic number, because the mean of its divisors is an integer number (116160607).

Almost surely, 2^232321213 is an apocalyptic number.

It is an amenable number.

232321213 is a deficient number, since it is larger than the sum of its proper divisors (1).

232321213 is an equidigital number, since it uses as much as digits as its factorization.

232321213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 19.

The square root of 232321213 is about 15242.0868977972. The cubic root of 232321213 is about 614.7468171493.

Adding to 232321213 its reverse (312123232), we get a palindrome (544444445).

The spelling of 232321213 in words is "two hundred thirty-two million, three hundred twenty-one thousand, two hundred thirteen".