325140203209 has 2 divisors, whose sum is σ = 325140203210. Its totient is φ = 325140203208.

The previous prime is 325140203207. The next prime is 325140203221. The reversal of 325140203209 is 902302041523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319284892809 + 5855310400 = 565053^2 + 76520^2 .

It is a cyclic number.

It is not a de Polignac number, because 325140203209 - 2¹ = 325140203207 is a prime.

Together with 325140203207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (325140203207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162570101604 + 162570101605.

It is an arithmetic number, because the mean of its divisors is an integer number (162570101605).

Almost surely, 2^325140203209 is an apocalyptic number.

It is an amenable number.

325140203209 is a deficient number, since it is larger than the sum of its proper divisors (1).

325140203209 is an equidigital number, since it uses as much as digits as its factorization.

325140203209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 325140203209 in words is "three hundred twenty-five billion, one hundred forty million, two hundred three thousand, two hundred nine".