11131260136 has 32 divisors (see below), whose sum is σ = 23059650240. Its totient is φ = 5010489088.

The previous prime is 11131260121. The next prime is 11131260229. The reversal of 11131260136 is 63106213111.

It is a self number, because there is not a number n which added to its sum of digits gives 11131260136.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1776166 + ... + 1782421.

It is an arithmetic number, because the mean of its divisors is an integer number (720614070).

Almost surely, 2^11131260136 is an apocalyptic number.

It is an amenable number.

11131260136 is an abundant number, since it is smaller than the sum of its proper divisors (11928390104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11131260136 is a wasteful number, since it uses less digits than its factorization.

11131260136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558633 (or 3558629 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 11131260136 its reverse (63106213111), we get a palindrome (74237473247).

The spelling of 11131260136 in words is "eleven billion, one hundred thirty-one million, two hundred sixty thousand, one hundred thirty-six".