32321213 has 2 divisors, whose sum is σ = 32321214. Its totient is φ = 32321212.

The previous prime is 32321197. The next prime is 32321249. The reversal of 32321213 is 31212323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29300569 + 3020644 = 5413^2 + 1738^2 .

It is a cyclic number.

It is not a de Polignac number, because 32321213 - 2⁴ = 32321197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32321191 and 32321200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32321293) 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, 16160606 + 16160607.

It is an arithmetic number, because the mean of its divisors is an integer number (16160607).

Almost surely, 2^32321213 is an apocalyptic number.

It is an amenable number.

32321213 is a deficient number, since it is larger than the sum of its proper divisors (1).

32321213 is an equidigital number, since it uses as much as digits as its factorization.

32321213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 17.

The square root of 32321213 is about 5685.1748433975. The cubic root of 32321213 is about 318.5389545941.

Adding to 32321213 its reverse (31212323), we get a palindrome (63533536).

The spelling of 32321213 in words is "thirty-two million, three hundred twenty-one thousand, two hundred thirteen".