213435023221169 has 2 divisors, whose sum is σ = 213435023221170. Its totient is φ = 213435023221168.

The previous prime is 213435023221117. The next prime is 213435023221171. The reversal of 213435023221169 is 961122320534312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190011475336225 + 23423547884944 = 13784465^2 + 4839788^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213435023221169 is a prime.

It is a super-2 number, since 2×213435023221169² (a number of 29 digits) contains 22 as substring.

Together with 213435023221171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (213435023221109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106717511610584 + 106717511610585.

It is an arithmetic number, because the mean of its divisors is an integer number (106717511610585).

Almost surely, 2^{213435023221169} is an apocalyptic number.

It is an amenable number.

213435023221169 is a deficient number, since it is larger than the sum of its proper divisors (1).

213435023221169 is an equidigital number, since it uses as much as digits as its factorization.

213435023221169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 213435023221169 in words is "two hundred thirteen trillion, four hundred thirty-five billion, twenty-three million, two hundred twenty-one thousand, one hundred sixty-nine".