12012300000 has 360 divisors, whose sum is σ = 44186749992. Its totient is φ = 3201120000.

The previous prime is 12012299951. The next prime is 12012300029. The reversal of 12012300000 is 321021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 8099259 + ... + 8100741.

Almost surely, 2^12012300000 is an apocalyptic number.

12012300000 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 12012300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22093374996).

12012300000 is an abundant number, since it is smaller than the sum of its proper divisors (32174449992).

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

12012300000 is an frugal number, since it uses more digits than its factorization.

12012300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530 (or 1493 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 12012300000 its reverse (321021), we get a palindrome (12012621021).

The spelling of 12012300000 in words is "twelve billion, twelve million, three hundred thousand".