11123243340 has 192 divisors, whose sum is σ = 36198973440. Its totient is φ = 2523605760.

The previous prime is 11123243317. The next prime is 11123243353. The reversal of 11123243340 is 4334232111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 11123243340.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1035477 + ... + 1046163.

It is an arithmetic number, because the mean of its divisors is an integer number (188536320).

Almost surely, 2^11123243340 is an apocalyptic number.

11123243340 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 11123243340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18099486720).

11123243340 is an abundant number, since it is smaller than the sum of its proper divisors (25075730100).

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

11123243340 is a wasteful number, since it uses less digits than its factorization.

11123243340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10812 (or 10810 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 11123243340 its reverse (4334232111), we get a palindrome (15457475451).

The spelling of 11123243340 in words is "eleven billion, one hundred twenty-three million, two hundred forty-three thousand, three hundred forty".