201211132061 has 2 divisors, whose sum is σ = 201211132062. Its totient is φ = 201211132060.

The previous prime is 201211131949. The next prime is 201211132063. The reversal of 201211132061 is 160231112102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200421859225 + 789272836 = 447685^2 + 28094^2 .

It is a cyclic number.

It is not a de Polignac number, because 201211132061 - 2¹⁸ = 201210869917 is a prime.

Together with 201211132063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201211132063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100605566030 + 100605566031.

It is an arithmetic number, because the mean of its divisors is an integer number (100605566031).

Almost surely, 2^201211132061 is an apocalyptic number.

It is an amenable number.

201211132061 is a deficient number, since it is larger than the sum of its proper divisors (1).

201211132061 is an equidigital number, since it uses as much as digits as its factorization.

201211132061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 201211132061 its reverse (160231112102), we get a palindrome (361442244163).

The spelling of 201211132061 in words is "two hundred one billion, two hundred eleven million, one hundred thirty-two thousand, sixty-one".