11143361340 has 144 divisors (see below), whose sum is σ = 34250580000. Its totient is φ = 2932360704.

The previous prime is 11143361309. The next prime is 11143361387. The reversal of 11143361340 is 4316334111.

11143361340 is a `hidden beast` number, since 1 + 1 + 1 + 4 + 3 + 3 + 613 + 40 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4370386 + ... + 4372934.

It is an arithmetic number, because the mean of its divisors is an integer number (237851250).

Almost surely, 2^11143361340 is an apocalyptic number.

11143361340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11143361340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17125290000).

11143361340 is an abundant number, since it is smaller than the sum of its proper divisors (23107218660).

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

11143361340 is a wasteful number, since it uses less digits than its factorization.

11143361340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876 (or 2871 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 11143361340 its reverse (4316334111), we get a palindrome (15459695451).

The spelling of 11143361340 in words is "eleven billion, one hundred forty-three million, three hundred sixty-one thousand, three hundred forty".