11143263340 has 96 divisors (see below), whose sum is σ = 26671498560. Its totient is φ = 3873408000.

The previous prime is 11143263331. The next prime is 11143263361. The reversal of 11143263340 is 4336234111.

It is a junction number, because it is equal to n+sod(n) for n = 11143263299 and 11143263308.

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, 635734 + ... + 653026.

It is an arithmetic number, because the mean of its divisors is an integer number (277828110).

Almost surely, 2^11143263340 is an apocalyptic number.

11143263340 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 11143263340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13335749280).

11143263340 is an abundant number, since it is smaller than the sum of its proper divisors (15528235220).

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

11143263340 is a wasteful number, since it uses less digits than its factorization.

11143263340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17443 (or 17441 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 11143263340 its reverse (4336234111), we get a palindrome (15479497451).

The spelling of 11143263340 in words is "eleven billion, one hundred forty-three million, two hundred sixty-three thousand, three hundred forty".