12312172800 has 432 divisors, whose sum is σ = 46225305280. Its totient is φ = 3204956160.

The previous prime is 12312172787. The next prime is 12312172811. The reversal of 12312172800 is 827121321.

12312172800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (432).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7429572 + ... + 7431228.

Almost surely, 2^12312172800 is an apocalyptic number.

12312172800 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 12312172800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23112652640).

12312172800 is an abundant number, since it is smaller than the sum of its proper divisors (33913132480).

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

12312172800 is a wasteful number, since it uses less digits than its factorization.

12312172800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735 (or 1710 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The spelling of 12312172800 in words is "twelve billion, three hundred twelve million, one hundred seventy-two thousand, eight hundred".