212564634341 has 2 divisors, whose sum is σ = 212564634342. Its totient is φ = 212564634340.

The previous prime is 212564634307. The next prime is 212564634343. The reversal of 212564634341 is 143436465212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169294394116 + 43270240225 = 411454^2 + 208015^2 .

It is a cyclic number.

It is not a de Polignac number, because 212564634341 - 2⁶ = 212564634277 is a prime.

Together with 212564634343, 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 (212564634343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106282317170 + 106282317171.

It is an arithmetic number, because the mean of its divisors is an integer number (106282317171).

Almost surely, 2^212564634341 is an apocalyptic number.

It is an amenable number.

212564634341 is a deficient number, since it is larger than the sum of its proper divisors (1).

212564634341 is an equidigital number, since it uses as much as digits as its factorization.

212564634341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 41.

The spelling of 212564634341 in words is "two hundred twelve billion, five hundred sixty-four million, six hundred thirty-four thousand, three hundred forty-one".