129443945026211 has 2 divisors, whose sum is σ = 129443945026212. Its totient is φ = 129443945026210.

The previous prime is 129443945026199. The next prime is 129443945026213. The reversal of 129443945026211 is 112620549344921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129443945026211 is a prime.

Together with 129443945026213, 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 (129443945026213) 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, 64721972513105 + 64721972513106.

It is an arithmetic number, because the mean of its divisors is an integer number (64721972513106).

Almost surely, 2^{129443945026211} is an apocalyptic number.

129443945026211 is a deficient number, since it is larger than the sum of its proper divisors (1).

129443945026211 is an equidigital number, since it uses as much as digits as its factorization.

129443945026211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 129443945026211 in words is "one hundred twenty-nine trillion, four hundred forty-three billion, nine hundred forty-five million, twenty-six thousand, two hundred eleven".