67031211213349 has 2 divisors, whose sum is σ = 67031211213350. Its totient is φ = 67031211213348.

The previous prime is 67031211213299. The next prime is 67031211213377. The reversal of 67031211213349 is 94331211213076.

67031211213349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61102643645124 + 5928567568225 = 7816818^2 + 2434865^2 .

It is a cyclic number.

It is not a de Polignac number, because 67031211213349 - 2²³ = 67031202824741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67031211210349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33515605606674 + 33515605606675.

It is an arithmetic number, because the mean of its divisors is an integer number (33515605606675).

Almost surely, 2^{67031211213349} is an apocalyptic number.

It is an amenable number.

67031211213349 is a deficient number, since it is larger than the sum of its proper divisors (1).

67031211213349 is an equidigital number, since it uses as much as digits as its factorization.

67031211213349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 67031211213349 in words is "sixty-seven trillion, thirty-one billion, two hundred eleven million, two hundred thirteen thousand, three hundred forty-nine".