134131420991 has 2 divisors, whose sum is σ = 134131420992. Its totient is φ = 134131420990.

The previous prime is 134131420963. The next prime is 134131421027. The reversal of 134131420991 is 199024131431.

It is a weak prime.

It is an emirp because it is prime and its reverse (199024131431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134131420991 - 2¹⁰ = 134131419967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134131480991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67065710495 + 67065710496.

It is an arithmetic number, because the mean of its divisors is an integer number (67065710496).

Almost surely, 2^134131420991 is an apocalyptic number.

134131420991 is a deficient number, since it is larger than the sum of its proper divisors (1).

134131420991 is an equidigital number, since it uses as much as digits as its factorization.

134131420991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 134131420991 in words is "one hundred thirty-four billion, one hundred thirty-one million, four hundred twenty thousand, nine hundred ninety-one".