232123217 has 2 divisors, whose sum is σ = 232123218. Its totient is φ = 232123216.

The previous prime is 232123207. The next prime is 232123249. The reversal of 232123217 is 712321232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208542481 + 23580736 = 14441^2 + 4856^2 .

It is a cyclic number.

It is not a de Polignac number, because 232123217 - 2⁴ = 232123201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 232123192 and 232123201.

It is not a weakly prime, because it can be changed into another prime (232123207) 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, 116061608 + 116061609.

It is an arithmetic number, because the mean of its divisors is an integer number (116061609).

Almost surely, 2^232123217 is an apocalyptic number.

It is an amenable number.

232123217 is a deficient number, since it is larger than the sum of its proper divisors (1).

232123217 is an equidigital number, since it uses as much as digits as its factorization.

232123217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 23.

The square root of 232123217 is about 15235.5904709991. The cubic root of 232123217 is about 614.5721279714.

Adding to 232123217 its reverse (712321232), we get a palindrome (944444449).

The spelling of 232123217 in words is "two hundred thirty-two million, one hundred twenty-three thousand, two hundred seventeen".