142234133134421 has 2 divisors, whose sum is σ = 142234133134422. Its totient is φ = 142234133134420.

The previous prime is 142234133134391. The next prime is 142234133134507. The reversal of 142234133134421 is 124431331432241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141801392825521 + 432740308900 = 11908039^2 + 657830^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142234133134421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142234133134321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71117066567210 + 71117066567211.

It is an arithmetic number, because the mean of its divisors is an integer number (71117066567211).

Almost surely, 2^{142234133134421} is an apocalyptic number.

It is an amenable number.

142234133134421 is a deficient number, since it is larger than the sum of its proper divisors (1).

142234133134421 is an equidigital number, since it uses as much as digits as its factorization.

142234133134421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 38.

Adding to 142234133134421 its reverse (124431331432241), we get a palindrome (266665464566662).

The spelling of 142234133134421 in words is "one hundred forty-two trillion, two hundred thirty-four billion, one hundred thirty-three million, one hundred thirty-four thousand, four hundred twenty-one".