134442321424421 has 2 divisors, whose sum is σ = 134442321424422. Its totient is φ = 134442321424420.

The previous prime is 134442321424399. The next prime is 134442321424427. The reversal of 134442321424421 is 124424123244431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132482632212100 + 1959689212321 = 11510110^2 + 1399889^2 .

It is a cyclic number.

It is not a de Polignac number, because 134442321424421 - 2³⁰ = 134441247682597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134442321424427) 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, 67221160712210 + 67221160712211.

It is an arithmetic number, because the mean of its divisors is an integer number (67221160712211).

Almost surely, 2^{134442321424421} is an apocalyptic number.

It is an amenable number.

134442321424421 is a deficient number, since it is larger than the sum of its proper divisors (1).

134442321424421 is an equidigital number, since it uses as much as digits as its factorization.

134442321424421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 589824, while the sum is 41.

Adding to 134442321424421 its reverse (124424123244431), we get a palindrome (258866444668852).

The spelling of 134442321424421 in words is "one hundred thirty-four trillion, four hundred forty-two billion, three hundred twenty-one million, four hundred twenty-four thousand, four hundred twenty-one".