11535123535 has 16 divisors (see below), whose sum is σ = 15691505760. Its totient is φ = 8069915520.

The previous prime is 11535123487. The next prime is 11535123539. The reversal of 11535123535 is 53532153511.

It is not a de Polignac number, because 11535123535 - 2¹⁹ = 11534599247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11535123535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11535123539) 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, 4668856 + ... + 4671325.

It is an arithmetic number, because the mean of its divisors is an integer number (980719110).

Almost surely, 2^11535123535 is an apocalyptic number.

11535123535 is a deficient number, since it is larger than the sum of its proper divisors (4156382225).

11535123535 is a wasteful number, since it uses less digits than its factorization.

11535123535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9340218.

The product of its digits is 33750, while the sum is 34.

The spelling of 11535123535 in words is "eleven billion, five hundred thirty-five million, one hundred twenty-three thousand, five hundred thirty-five".