201110211097 has 2 divisors, whose sum is σ = 201110211098. Its totient is φ = 201110211096.

The previous prime is 201110211091. The next prime is 201110211131. The reversal of 201110211097 is 790112011102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148487686281 + 52622524816 = 385341^2 + 229396^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201110211097 is a prime.

It is not a weakly prime, because it can be changed into another prime (201110211091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100555105548 + 100555105549.

It is an arithmetic number, because the mean of its divisors is an integer number (100555105549).

Almost surely, 2^201110211097 is an apocalyptic number.

It is an amenable number.

201110211097 is a deficient number, since it is larger than the sum of its proper divisors (1).

201110211097 is an equidigital number, since it uses as much as digits as its factorization.

201110211097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 25.

Adding to 201110211097 its reverse (790112011102), we get a palindrome (991222222199).

The spelling of 201110211097 in words is "two hundred one billion, one hundred ten million, two hundred eleven thousand, ninety-seven".