12451320000 has 980 divisors, whose sum is σ = 53772049936. Its totient is φ = 2799360000.

The previous prime is 12451319927. The next prime is 12451320059. The reversal of 12451320000 is 2315421.

12451320000 is a `hidden beast` number, since 12 + 451 + 3 + 200 + 0 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 139 ways as a sum of consecutive naturals, for example, 204119970 + ... + 204120030.

Almost surely, 2^12451320000 is an apocalyptic number.

12451320000 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 12451320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26886024968).

12451320000 is an abundant number, since it is smaller than the sum of its proper divisors (41320729936).

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

12451320000 is an frugal number, since it uses more digits than its factorization.

12451320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 12451320000 its reverse (2315421), we get a palindrome (12453635421).

The spelling of 12451320000 in words is "twelve billion, four hundred fifty-one million, three hundred twenty thousand".