201201010111181 has 2 divisors, whose sum is σ = 201201010111182. Its totient is φ = 201201010111180.

The previous prime is 201201010111061. The next prime is 201201010111207. The reversal of 201201010111181 is 181111010102102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135198546955081 + 66002463156100 = 11627491^2 + 8124190^2 .

It is a cyclic number.

It is not a de Polignac number, because 201201010111181 - 2²⁶ = 201200943002317 is a prime.

It is a super-2 number, since 2×201201010111181² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201201010119181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100600505055590 + 100600505055591.

It is an arithmetic number, because the mean of its divisors is an integer number (100600505055591).

Almost surely, 2^{201201010111181} is an apocalyptic number.

It is an amenable number.

201201010111181 is a deficient number, since it is larger than the sum of its proper divisors (1).

201201010111181 is an equidigital number, since it uses as much as digits as its factorization.

201201010111181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 20.

Adding to 201201010111181 its reverse (181111010102102), we get a palindrome (382312020213283).

The spelling of 201201010111181 in words is "two hundred one trillion, two hundred one billion, ten million, one hundred eleven thousand, one hundred eighty-one".