12305520000 has 560 divisors, whose sum is σ = 46147399980. Its totient is φ = 3265920000.

The previous prime is 12305519999. The next prime is 12305520041. The reversal of 12305520000 is 2550321.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 69 ways as a sum of consecutive naturals, for example, 58319895 + ... + 58320105.

Almost surely, 2^12305520000 is an apocalyptic number.

12305520000 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 12305520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23073699990).

12305520000 is an abundant number, since it is smaller than the sum of its proper divisors (33841879980).

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

12305520000 is an frugal number, since it uses more digits than its factorization.

12305520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The spelling of 12305520000 in words is "twelve billion, three hundred five million, five hundred twenty thousand".