201111201089 has 2 divisors, whose sum is σ = 201111201090. Its totient is φ = 201111201088.

The previous prime is 201111201059. The next prime is 201111201103. The reversal of 201111201089 is 980102111102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169138900225 + 31972300864 = 411265^2 + 178808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201111201089 is a prime.

It is not a weakly prime, because it can be changed into another prime (201111201019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100555600544 + 100555600545.

It is an arithmetic number, because the mean of its divisors is an integer number (100555600545).

Almost surely, 2^201111201089 is an apocalyptic number.

It is an amenable number.

201111201089 is a deficient number, since it is larger than the sum of its proper divisors (1).

201111201089 is an equidigital number, since it uses as much as digits as its factorization.

201111201089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 26.

The spelling of 201111201089 in words is "two hundred one billion, one hundred eleven million, two hundred one thousand, eighty-nine".