11324999840 has 384 divisors, whose sum is σ = 34425409536. Its totient is φ = 3447628800.

The previous prime is 11324999813. The next prime is 11324999843. The reversal of 11324999840 is 4899942311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11324999843) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 105841067 + ... + 105841173.

It is an arithmetic number, because the mean of its divisors is an integer number (89649504).

Almost surely, 2^11324999840 is an apocalyptic number.

11324999840 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 11324999840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17212704768).

11324999840 is an abundant number, since it is smaller than the sum of its proper divisors (23100409696).

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

11324999840 is a wasteful number, since it uses less digits than its factorization.

11324999840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 11324999840 in words is "eleven billion, three hundred twenty-four million, nine hundred ninety-nine thousand, eight hundred forty".