12103210012120 has 32 divisors (see below), whose sum is σ = 27232784424000. Its totient is φ = 4841184112128.

The previous prime is 12103210012081. The next prime is 12103210012121. The reversal of 12103210012120 is 2121001230121.

12103210012120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12103210012094 and 12103210012103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103210012121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1143345 + ... + 5051104.

It is an arithmetic number, because the mean of its divisors is an integer number (851024513250).

Almost surely, 2^{12103210012120} is an apocalyptic number.

12103210012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103210012120 is an abundant number, since it is smaller than the sum of its proper divisors (15129574411880).

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

12103210012120 is a wasteful number, since it uses less digits than its factorization.

12103210012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6243307 (or 6243303 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12103210012120 its reverse (2121001230121), we get a palindrome (14224211242241).

The spelling of 12103210012120 in words is "twelve trillion, one hundred three billion, two hundred ten million, twelve thousand, one hundred twenty".