11812320000 has 540 divisors, whose sum is σ = 45905043184. Its totient is φ = 2903040000.

The previous prime is 11812319993. The next prime is 11812320043. The reversal of 11812320000 is 2321811.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 18719685 + ... + 18720315.

Almost surely, 2^11812320000 is an apocalyptic number.

11812320000 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 11812320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22952521592).

11812320000 is an abundant number, since it is smaller than the sum of its proper divisors (34092723184).

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

11812320000 is an equidigital number, since it uses as much as digits as its factorization.

11812320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 686 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11812320000 its reverse (2321811), we get a palindrome (11814641811).

The spelling of 11812320000 in words is "eleven billion, eight hundred twelve million, three hundred twenty thousand".