12100020103 has 4 divisors (see below), whose sum is σ = 12146028048. Its totient is φ = 12054012160.

The previous prime is 12100020073. The next prime is 12100020109. The reversal of 12100020103 is 30102000121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30102000121 = 127 ⋅237023623.

It is a cyclic number.

It is not a de Polignac number, because 12100020103 - 2⁵ = 12100020071 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12100020103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100020109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23003578 + ... + 23004103.

It is an arithmetic number, because the mean of its divisors is an integer number (3036507012).

Almost surely, 2^12100020103 is an apocalyptic number.

12100020103 is a deficient number, since it is larger than the sum of its proper divisors (46007945).

12100020103 is an equidigital number, since it uses as much as digits as its factorization.

12100020103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46007944.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 12100020103 its reverse (30102000121), we get a palindrome (42202020224).

The spelling of 12100020103 in words is "twelve billion, one hundred million, twenty thousand, one hundred three".