12103100123112 has 24 divisors (see below), whose sum is σ = 32779229500290. Its totient is φ = 4034366707680.

The previous prime is 12103100123099. The next prime is 12103100123123. The reversal of 12103100123112 is 21132100130121.

12103100123112 is a `hidden beast` number, since 121 + 0 + 310 + 0 + 1 + 231 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11571930276516 + 531169846596 = 3401754^2 + 728814^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84049306339 + ... + 84049306482.

Almost surely, 2^{12103100123112} is an apocalyptic number.

12103100123112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12103100123112 is an abundant number, since it is smaller than the sum of its proper divisors (20676129377178).

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

12103100123112 is a wasteful number, since it uses less digits than its factorization.

12103100123112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168098612833 (or 168098612826 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 12103100123112 its reverse (21132100130121), we get a palindrome (33235200253233).

The spelling of 12103100123112 in words is "twelve trillion, one hundred three billion, one hundred million, one hundred twenty-three thousand, one hundred twelve".