12103130121320 has 64 divisors (see below), whose sum is σ = 31122828979200. Its totient is φ = 4149578695680.

The previous prime is 12103130121293. The next prime is 12103130121377. The reversal of 12103130121320 is 2312103130121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12103130121292 and 12103130121301.

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 15 ways as a sum of consecutive naturals, for example, 19322816 + ... + 19939344.

It is an arithmetic number, because the mean of its divisors is an integer number (486294202800).

Almost surely, 2^{12103130121320} is an apocalyptic number.

12103130121320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103130121320 is an abundant number, since it is smaller than the sum of its proper divisors (19019698857880).

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

12103130121320 is a wasteful number, since it uses less digits than its factorization.

12103130121320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686658 (or 686654 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12103130121320 its reverse (2312103130121), we get a palindrome (14415233251441).

The spelling of 12103130121320 in words is "twelve trillion, one hundred three billion, one hundred thirty million, one hundred twenty-one thousand, three hundred twenty".