135125113303 has 4 divisors (see below), whose sum is σ = 135161865720. Its totient is φ = 135088360888.

The previous prime is 135125113301. The next prime is 135125113337. The reversal of 135125113303 is 303311521531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303311521531 = 71 ⋅4271993261.

It is a cyclic number.

It is not a de Polignac number, because 135125113303 - 2¹ = 135125113301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135125113301) 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 in 3 ways as a sum of consecutive naturals, for example, 18370693 + ... + 18378046.

It is an arithmetic number, because the mean of its divisors is an integer number (33790466430).

Almost surely, 2^135125113303 is an apocalyptic number.

135125113303 is a deficient number, since it is larger than the sum of its proper divisors (36752417).

135125113303 is an equidigital number, since it uses as much as digits as its factorization.

135125113303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36752416.

The product of its (nonzero) digits is 4050, while the sum is 28.

Adding to 135125113303 its reverse (303311521531), we get a palindrome (438436634834).

The spelling of 135125113303 in words is "one hundred thirty-five billion, one hundred twenty-five million, one hundred thirteen thousand, three hundred three".