211323123132101 has 2 divisors, whose sum is σ = 211323123132102. Its totient is φ = 211323123132100.

The previous prime is 211323123132059. The next prime is 211323123132103. The reversal of 211323123132101 is 101231321323112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202360440369025 + 8962682763076 = 14225345^2 + 2993774^2 .

It is a cyclic number.

It is not a de Polignac number, because 211323123132101 - 2¹⁰ = 211323123131077 is a prime.

Together with 211323123132103, 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 (211323123132103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105661561566050 + 105661561566051.

It is an arithmetic number, because the mean of its divisors is an integer number (105661561566051).

Almost surely, 2^{211323123132101} is an apocalyptic number.

It is an amenable number.

211323123132101 is a deficient number, since it is larger than the sum of its proper divisors (1).

211323123132101 is an equidigital number, since it uses as much as digits as its factorization.

211323123132101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 211323123132101 its reverse (101231321323112), we get a palindrome (312554444455213).

The spelling of 211323123132101 in words is "two hundred eleven trillion, three hundred twenty-three billion, one hundred twenty-three million, one hundred thirty-two thousand, one hundred one".