12003123000121 has 16 divisors (see below), whose sum is σ = 13449388360320. Its totient is φ = 10616087767680.

The previous prime is 12003123000101. The next prime is 12003123000131. The reversal of 12003123000121 is 12100032130021.

It is a cyclic number.

It is not a de Polignac number, because 12003123000121 - 2¹³ = 12003122991929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12003123000095 and 12003123000104.

It is not an unprimeable number, because it can be changed into a prime (12003123000101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3412245 + ... + 5970733.

It is an arithmetic number, because the mean of its divisors is an integer number (840586772520).

Almost surely, 2^{12003123000121} is an apocalyptic number.

12003123000121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12003123000121 is a deficient number, since it is larger than the sum of its proper divisors (1446265360199).

12003123000121 is a wasteful number, since it uses less digits than its factorization.

12003123000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2570064.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12003123000121 its reverse (12100032130021), we get a palindrome (24103155130142).

The spelling of 12003123000121 in words is "twelve trillion, three billion, one hundred twenty-three million, one hundred twenty-one", and thus it is an aban number.