12103021123200 has 384 divisors, whose sum is σ = 50621368656000. Its totient is φ = 2766404689920.

The previous prime is 12103021123181. The next prime is 12103021123229. The reversal of 12103021123200 is 232112030121.

12103021123200 is a `hidden beast` number, since 121 + 0 + 302 + 11 + 232 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

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 (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9401005 + ... + 10610604.

It is an arithmetic number, because the mean of its divisors is an integer number (131826480875).

Almost surely, 2^{12103021123200} is an apocalyptic number.

12103021123200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103021123200 is an abundant number, since it is smaller than the sum of its proper divisors (38518347532800).

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

12103021123200 is a wasteful number, since it uses less digits than its factorization.

12103021123200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20011649 (or 20011626 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12103021123200 its reverse (232112030121), we get a palindrome (12335133153321).

The spelling of 12103021123200 in words is "twelve trillion, one hundred three billion, twenty-one million, one hundred twenty-three thousand, two hundred".