12321230780160 has 216 divisors, whose sum is σ = 42679607128704. Its totient is φ = 3281851637760.

The previous prime is 12321230780147. The next prime is 12321230780197. The reversal of 12321230780160 is 6108703212321.

12321230780160 is a `hidden beast` number, since 1 + 2 + 3 + 212 + 307 + 80 + 1 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 9322090 + ... + 10561430.

It is an arithmetic number, because the mean of its divisors is an integer number (197590773744).

Almost surely, 2^{12321230780160} is an apocalyptic number.

12321230780160 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 12321230780160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21339803564352).

12321230780160 is an abundant number, since it is smaller than the sum of its proper divisors (30358376348544).

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

12321230780160 is a wasteful number, since it uses less digits than its factorization.

12321230780160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240231 (or 1240214 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

Adding to 12321230780160 its reverse (6108703212321), we get a palindrome (18429933992481).

The spelling of 12321230780160 in words is "twelve trillion, three hundred twenty-one billion, two hundred thirty million, seven hundred eighty thousand, one hundred sixty".