211342323191 has 2 divisors, whose sum is σ = 211342323192. Its totient is φ = 211342323190.

The previous prime is 211342323167. The next prime is 211342323221. The reversal of 211342323191 is 191323243112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211342323191 - 2²² = 211338128887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211342323691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105671161595 + 105671161596.

It is an arithmetic number, because the mean of its divisors is an integer number (105671161596).

Almost surely, 2^211342323191 is an apocalyptic number.

211342323191 is a deficient number, since it is larger than the sum of its proper divisors (1).

211342323191 is an equidigital number, since it uses as much as digits as its factorization.

211342323191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The spelling of 211342323191 in words is "two hundred eleven billion, three hundred forty-two million, three hundred twenty-three thousand, one hundred ninety-one".