135240421105033 has 2 divisors, whose sum is σ = 135240421105034. Its totient is φ = 135240421105032.

The previous prime is 135240421105019. The next prime is 135240421105051. The reversal of 135240421105033 is 330501124042531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113718912504649 + 21521508600384 = 10663907^2 + 4639128^2 .

It is a cyclic number.

It is not a de Polignac number, because 135240421105033 - 2²⁵ = 135240387550601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135240421105033.

It is not a weakly prime, because it can be changed into another prime (135240421108033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67620210552516 + 67620210552517.

It is an arithmetic number, because the mean of its divisors is an integer number (67620210552517).

Almost surely, 2^{135240421105033} is an apocalyptic number.

It is an amenable number.

135240421105033 is a deficient number, since it is larger than the sum of its proper divisors (1).

135240421105033 is an equidigital number, since it uses as much as digits as its factorization.

135240421105033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 135240421105033 its reverse (330501124042531), we get a palindrome (465741545147564).

The spelling of 135240421105033 in words is "one hundred thirty-five trillion, two hundred forty billion, four hundred twenty-one million, one hundred five thousand, thirty-three".