213185330694341 has 2 divisors, whose sum is σ = 213185330694342. Its totient is φ = 213185330694340.

The previous prime is 213185330694319. The next prime is 213185330694409. The reversal of 213185330694341 is 143496033581312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194700748297441 + 18484582396900 = 13953521^2 + 4299370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213185330694341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213185330994341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106592665347170 + 106592665347171.

It is an arithmetic number, because the mean of its divisors is an integer number (106592665347171).

Almost surely, 2^{213185330694341} is an apocalyptic number.

It is an amenable number.

213185330694341 is a deficient number, since it is larger than the sum of its proper divisors (1).

213185330694341 is an equidigital number, since it uses as much as digits as its factorization.

213185330694341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5598720, while the sum is 53.

The spelling of 213185330694341 in words is "two hundred thirteen trillion, one hundred eighty-five billion, three hundred thirty million, six hundred ninety-four thousand, three hundred forty-one".