135113315523 has 16 divisors (see below), whose sum is σ = 180368553120. Its totient is φ = 89966882304.

The previous prime is 135113315521. The next prime is 135113315543. The reversal of 135113315523 is 325513311531.

It is not a de Polignac number, because 135113315523 - 2¹ = 135113315521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135113315521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9445965 + ... + 9460257.

It is an arithmetic number, because the mean of its divisors is an integer number (11273034570).

Almost surely, 2^135113315523 is an apocalyptic number.

135113315523 is a deficient number, since it is larger than the sum of its proper divisors (45255237597).

135113315523 is a wasteful number, since it uses less digits than its factorization.

135113315523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17878.

The product of its digits is 20250, while the sum is 33.

The spelling of 135113315523 in words is "one hundred thirty-five billion, one hundred thirteen million, three hundred fifteen thousand, five hundred twenty-three".