12103012331212 has 96 divisors (see below), whose sum is σ = 25535910597120. Its totient is φ = 4951221918720.

The previous prime is 12103012331177. The next prime is 12103012331213. The reversal of 12103012331212 is 21213321030121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (12103012331213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61095739 + ... + 61293517.

It is an arithmetic number, because the mean of its divisors is an integer number (265999068720).

Almost surely, 2^{12103012331212} is an apocalyptic number.

It is an amenable number.

12103012331212 is an abundant number, since it is smaller than the sum of its proper divisors (13432898265908).

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

12103012331212 is a wasteful number, since it uses less digits than its factorization.

12103012331212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201391 (or 201389 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12103012331212 its reverse (21213321030121), we get a palindrome (33316333361333).

The spelling of 12103012331212 in words is "twelve trillion, one hundred three billion, twelve million, three hundred thirty-one thousand, two hundred twelve".