135256310699 has 2 divisors, whose sum is σ = 135256310700. Its totient is φ = 135256310698.

The previous prime is 135256310627. The next prime is 135256310719. The reversal of 135256310699 is 996013652531.

It is a strong prime.

It is an emirp because it is prime and its reverse (996013652531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135256310699 - 2²⁰ = 135255262123 is a prime.

It is not a weakly prime, because it can be changed into another prime (135256310999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67628155349 + 67628155350.

It is an arithmetic number, because the mean of its divisors is an integer number (67628155350).

Almost surely, 2^135256310699 is an apocalyptic number.

135256310699 is a deficient number, since it is larger than the sum of its proper divisors (1).

135256310699 is an equidigital number, since it uses as much as digits as its factorization.

135256310699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1312200, while the sum is 50.

The spelling of 135256310699 in words is "one hundred thirty-five billion, two hundred fifty-six million, three hundred ten thousand, six hundred ninety-nine".