213113212289 has 2 divisors, whose sum is σ = 213113212290. Its totient is φ = 213113212288.

The previous prime is 213113212261. The next prime is 213113212357. The reversal of 213113212289 is 982212311312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191021443600 + 22091768689 = 437060^2 + 148633^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213113212289 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (213113212189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106556606144 + 106556606145.

It is an arithmetic number, because the mean of its divisors is an integer number (106556606145).

Almost surely, 2^213113212289 is an apocalyptic number.

It is an amenable number.

213113212289 is a deficient number, since it is larger than the sum of its proper divisors (1).

213113212289 is an equidigital number, since it uses as much as digits as its factorization.

213113212289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 35.

The spelling of 213113212289 in words is "two hundred thirteen billion, one hundred thirteen million, two hundred twelve thousand, two hundred eighty-nine".