211342101121 has 2 divisors, whose sum is σ = 211342101122. Its totient is φ = 211342101120.

The previous prime is 211342101119. The next prime is 211342101167. The reversal of 211342101121 is 121101243112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160464336400 + 50877764721 = 400580^2 + 225561^2 .

It is a cyclic number.

It is not a de Polignac number, because 211342101121 - 2¹ = 211342101119 is a prime.

Together with 211342101119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (211342101521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105671050560 + 105671050561.

It is an arithmetic number, because the mean of its divisors is an integer number (105671050561).

Almost surely, 2^211342101121 is an apocalyptic number.

It is an amenable number.

211342101121 is a deficient number, since it is larger than the sum of its proper divisors (1).

211342101121 is an equidigital number, since it uses as much as digits as its factorization.

211342101121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 211342101121 its reverse (121101243112), we get a palindrome (332443344233).

The spelling of 211342101121 in words is "two hundred eleven billion, three hundred forty-two million, one hundred one thousand, one hundred twenty-one".