20123100131103 has 6 divisors (see below), whose sum is σ = 29066700189384. Its totient is φ = 13415400087396.

The previous prime is 20123100131077. The next prime is 20123100131137. The reversal of 20123100131103 is 30113100132102.

20123100131103 is a `hidden beast` number, since 201 + 231 + 0 + 0 + 131 + 103 = 666.

It is not a de Polignac number, because 20123100131103 - 2¹⁰ = 20123100130079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123100031103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1117950007275 + ... + 1117950007292.

It is an arithmetic number, because the mean of its divisors is an integer number (4844450031564).

Almost surely, 2^{20123100131103} is an apocalyptic number.

20123100131103 is a deficient number, since it is larger than the sum of its proper divisors (8943600058281).

20123100131103 is a wasteful number, since it uses less digits than its factorization.

20123100131103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235900014573 (or 2235900014570 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 20123100131103 its reverse (30113100132102), we get a palindrome (50236200263205).

Subtracting 20123100131103 from its reverse (30113100132102), we obtain a palindrome (9990000000999).

The spelling of 20123100131103 in words is "twenty trillion, one hundred twenty-three billion, one hundred million, one hundred thirty-one thousand, one hundred three".