135423230513 has 2 divisors, whose sum is σ = 135423230514. Its totient is φ = 135423230512.

The previous prime is 135423230491. The next prime is 135423230539. The reversal of 135423230513 is 315032324531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73198925809 + 62224304704 = 270553^2 + 249448^2 .

It is a cyclic number.

It is not a de Polignac number, because 135423230513 - 2¹⁰ = 135423229489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135423230513.

It is not a weakly prime, because it can be changed into another prime (135423230713) 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, 67711615256 + 67711615257.

It is an arithmetic number, because the mean of its divisors is an integer number (67711615257).

Almost surely, 2^135423230513 is an apocalyptic number.

It is an amenable number.

135423230513 is a deficient number, since it is larger than the sum of its proper divisors (1).

135423230513 is an equidigital number, since it uses as much as digits as its factorization.

135423230513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 32.

The spelling of 135423230513 in words is "one hundred thirty-five billion, four hundred twenty-three million, two hundred thirty thousand, five hundred thirteen".