12117836135 has 16 divisors (see below), whose sum is σ = 14741546400. Its totient is φ = 9561634176.

The previous prime is 12117836119. The next prime is 12117836141. The reversal of 12117836135 is 53163871121.

It is a cyclic number.

It is not a de Polignac number, because 12117836135 - 2⁴ = 12117836119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73061 + ... + 171969.

It is an arithmetic number, because the mean of its divisors is an integer number (921346650).

Almost surely, 2^12117836135 is an apocalyptic number.

12117836135 is a deficient number, since it is larger than the sum of its proper divisors (2623710265).

12117836135 is a wasteful number, since it uses less digits than its factorization.

12117836135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99250.

The product of its digits is 30240, while the sum is 38.

The spelling of 12117836135 in words is "twelve billion, one hundred seventeen million, eight hundred thirty-six thousand, one hundred thirty-five".