201113133217 has 2 divisors, whose sum is σ = 201113133218. Its totient is φ = 201113133216.

The previous prime is 201113133191. The next prime is 201113133227. The reversal of 201113133217 is 712331311102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201112783936 + 349281 = 448456^2 + 591^2 .

It is a cyclic number.

It is not a de Polignac number, because 201113133217 - 2¹¹ = 201113131169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201113133191 and 201113133200.

It is not a weakly prime, because it can be changed into another prime (201113133227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100556566608 + 100556566609.

It is an arithmetic number, because the mean of its divisors is an integer number (100556566609).

Almost surely, 2^201113133217 is an apocalyptic number.

It is an amenable number.

201113133217 is a deficient number, since it is larger than the sum of its proper divisors (1).

201113133217 is an equidigital number, since it uses as much as digits as its factorization.

201113133217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

Adding to 201113133217 its reverse (712331311102), we get a palindrome (913444444319).

The spelling of 201113133217 in words is "two hundred one billion, one hundred thirteen million, one hundred thirty-three thousand, two hundred seventeen".