201201323017 has 2 divisors, whose sum is σ = 201201323018. Its totient is φ = 201201323016.

The previous prime is 201201322979. The next prime is 201201323027. The reversal of 201201323017 is 710323102102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198135375376 + 3065947641 = 445124^2 + 55371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201201323017 is a prime.

It is not a weakly prime, because it can be changed into another prime (201201323027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100600661508 + 100600661509.

It is an arithmetic number, because the mean of its divisors is an integer number (100600661509).

Almost surely, 2^201201323017 is an apocalyptic number.

It is an amenable number.

201201323017 is a deficient number, since it is larger than the sum of its proper divisors (1).

201201323017 is an equidigital number, since it uses as much as digits as its factorization.

201201323017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 201201323017 its reverse (710323102102), we get a palindrome (911524425119).

The spelling of 201201323017 in words is "two hundred one billion, two hundred one million, three hundred twenty-three thousand, seventeen".