213210229965673 has 2 divisors, whose sum is σ = 213210229965674. Its totient is φ = 213210229965672.

The previous prime is 213210229965647. The next prime is 213210229965683. The reversal of 213210229965673 is 376569922012312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211657484693209 + 1552745272464 = 14548453^2 + 1246092^2 .

It is a cyclic number.

It is not a de Polignac number, because 213210229965673 - 2⁴¹ = 211011206710121 is a prime.

It is not a weakly prime, because it can be changed into another prime (213210229965683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106605114982836 + 106605114982837.

It is an arithmetic number, because the mean of its divisors is an integer number (106605114982837).

Almost surely, 2^{213210229965673} is an apocalyptic number.

It is an amenable number.

213210229965673 is a deficient number, since it is larger than the sum of its proper divisors (1).

213210229965673 is an equidigital number, since it uses as much as digits as its factorization.

213210229965673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14696640, while the sum is 58.

The spelling of 213210229965673 in words is "two hundred thirteen trillion, two hundred ten billion, two hundred twenty-nine million, nine hundred sixty-five thousand, six hundred seventy-three".