11081242536 has 128 divisors (see below), whose sum is σ = 34132734720. Its totient is φ = 2919389184.

The previous prime is 11081242483. The next prime is 11081242541. The reversal of 11081242536 is 63524218011.

It is a super-2 number, since 2×11081242536² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11081242497 and 11081242506.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2603386 + ... + 2607638.

It is an arithmetic number, because the mean of its divisors is an integer number (266661990).

Almost surely, 2^11081242536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11081242536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17066367360).

11081242536 is an abundant number, since it is smaller than the sum of its proper divisors (23051492184).

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

11081242536 is a wasteful number, since it uses less digits than its factorization.

11081242536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5475 (or 5471 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The spelling of 11081242536 in words is "eleven billion, eighty-one million, two hundred forty-two thousand, five hundred thirty-six".