2021002103103 has 4 divisors (see below), whose sum is σ = 2694669470808. Its totient is φ = 1347334735400.

The previous prime is 2021002103089. The next prime is 2021002103207. The reversal of 2021002103103 is 3013012001202.

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 2021002103103 - 2³⁰ = 2019928361279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021002103903) 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 3 ways as a sum of consecutive naturals, for example, 336833683848 + ... + 336833683853.

It is an arithmetic number, because the mean of its divisors is an integer number (673667367702).

Almost surely, 2^{2021002103103} is an apocalyptic number.

2021002103103 is a deficient number, since it is larger than the sum of its proper divisors (673667367705).

2021002103103 is an equidigital number, since it uses as much as digits as its factorization.

2021002103103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673667367704.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 2021002103103 its reverse (3013012001202), we get a palindrome (5034014104305).

The spelling of 2021002103103 in words is "two trillion, twenty-one billion, two million, one hundred three thousand, one hundred three".