3201201209 has 2 divisors, whose sum is σ = 3201201210. Its totient is φ = 3201201208.

The previous prime is 3201201181. The next prime is 3201201233. The reversal of 3201201209 is 9021021023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2213984809 + 987216400 = 47053^2 + 31420^2 .

It is a cyclic number.

It is not a de Polignac number, because 3201201209 - 2²⁴ = 3184423993 is a prime.

It is not a weakly prime, because it can be changed into another prime (3201201259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1600600604 + 1600600605.

It is an arithmetic number, because the mean of its divisors is an integer number (1600600605).

Almost surely, 2^3201201209 is an apocalyptic number.

It is an amenable number.

3201201209 is a deficient number, since it is larger than the sum of its proper divisors (1).

3201201209 is an equidigital number, since it uses as much as digits as its factorization.

3201201209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 3201201209 is about 56579.1587866062. The cubic root of 3201201209 is about 1473.7969635474.

The spelling of 3201201209 in words is "three billion, two hundred one million, two hundred one thousand, two hundred nine".