20103021012103 has 16 divisors (see below), whose sum is σ = 21361283775360. Its totient is φ = 18882575712000.

The previous prime is 20103021012077. The next prime is 20103021012121. The reversal of 20103021012103 is 30121012030102.

It is a cyclic number.

It is not a de Polignac number, because 20103021012103 - 2⁵ = 20103021012071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20103021082103) 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 15 ways as a sum of consecutive naturals, for example, 6363043 + ... + 8983003.

It is an arithmetic number, because the mean of its divisors is an integer number (1335080235960).

Almost surely, 2^{20103021012103} is an apocalyptic number.

20103021012103 is a deficient number, since it is larger than the sum of its proper divisors (1258262763257).

20103021012103 is a wasteful number, since it uses less digits than its factorization.

20103021012103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627178.

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

Adding to 20103021012103 its reverse (30121012030102), we get a palindrome (50224033042205).

The spelling of 20103021012103 in words is "twenty trillion, one hundred three billion, twenty-one million, twelve thousand, one hundred three".