134329420021 has 2 divisors, whose sum is σ = 134329420022. Its totient is φ = 134329420020.

The previous prime is 134329419953. The next prime is 134329420033. The reversal of 134329420021 is 120024923431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 123401853796 + 10927566225 = 351286^2 + 104535^2 .

It is a cyclic number.

It is not a de Polignac number, because 134329420021 - 2¹³ = 134329411829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134329420061) 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, 67164710010 + 67164710011.

It is an arithmetic number, because the mean of its divisors is an integer number (67164710011).

Almost surely, 2^134329420021 is an apocalyptic number.

It is an amenable number.

134329420021 is a deficient number, since it is larger than the sum of its proper divisors (1).

134329420021 is an equidigital number, since it uses as much as digits as its factorization.

134329420021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 134329420021 in words is "one hundred thirty-four billion, three hundred twenty-nine million, four hundred twenty thousand, twenty-one".