12010203200123 has 4 divisors (see below), whose sum is σ = 12011031333168. Its totient is φ = 12009375067080.

The previous prime is 12010203200041. The next prime is 12010203200141. The reversal of 12010203200123 is 32100230201021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12010203200123 - 2¹⁸ = 12010202937979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12010203200183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414044768 + ... + 414073773.

It is an arithmetic number, because the mean of its divisors is an integer number (3002757833292).

Almost surely, 2^{12010203200123} is an apocalyptic number.

12010203200123 is a deficient number, since it is larger than the sum of its proper divisors (828133045).

12010203200123 is an equidigital number, since it uses as much as digits as its factorization.

12010203200123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828133044.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12010203200123 its reverse (32100230201021), we get a palindrome (44110433401144).

The spelling of 12010203200123 in words is "twelve trillion, ten billion, two hundred three million, two hundred thousand, one hundred twenty-three".