201323122229 has 2 divisors, whose sum is σ = 201323122230. Its totient is φ = 201323122228.

The previous prime is 201323122207. The next prime is 201323122261. The reversal of 201323122229 is 922221323102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195097123204 + 6225999025 = 441698^2 + 78905^2 .

It is a cyclic number.

It is not a de Polignac number, because 201323122229 - 2²⁰ = 201322073653 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (281323122229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100661561114 + 100661561115.

It is an arithmetic number, because the mean of its divisors is an integer number (100661561115).

Almost surely, 2^201323122229 is an apocalyptic number.

It is an amenable number.

201323122229 is a deficient number, since it is larger than the sum of its proper divisors (1).

201323122229 is an equidigital number, since it uses as much as digits as its factorization.

201323122229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 201323122229 in words is "two hundred one billion, three hundred twenty-three million, one hundred twenty-two thousand, two hundred twenty-nine".