232213213 has 2 divisors, whose sum is σ = 232213214. Its totient is φ = 232213212.

The previous prime is 232213211. The next prime is 232213243. The reversal of 232213213 is 312312232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207878724 + 24334489 = 14418^2 + 4933^2 .

It is a cyclic number.

It is not a de Polignac number, because 232213213 - 2¹ = 232213211 is a prime.

Together with 232213211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232213211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116106606 + 116106607.

It is an arithmetic number, because the mean of its divisors is an integer number (116106607).

Almost surely, 2^232213213 is an apocalyptic number.

It is an amenable number.

232213213 is a deficient number, since it is larger than the sum of its proper divisors (1).

232213213 is an equidigital number, since it uses as much as digits as its factorization.

232213213 is an evil number, because the sum of its binary digits is even.

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

The square root of 232213213 is about 15238.5436640120. The cubic root of 232213213 is about 614.6515425277.

Adding to 232213213 its reverse (312312232), we get a palindrome (544525445).

The spelling of 232213213 in words is "two hundred thirty-two million, two hundred thirteen thousand, two hundred thirteen".