2021201012103 has 128 divisors (see below), whose sum is σ = 3571126272000. Its totient is φ = 1007617968000.

The previous prime is 2021201012099. The next prime is 2021201012147. The reversal of 2021201012103 is 3012101021202.

It is not a de Polignac number, because 2021201012103 - 2² = 2021201012099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021201012153) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 109535028 + ... + 109553478.

It is an arithmetic number, because the mean of its divisors is an integer number (27899424000).

Almost surely, 2^{2021201012103} is an apocalyptic number.

2021201012103 is a deficient number, since it is larger than the sum of its proper divisors (1549925259897).

2021201012103 is a wasteful number, since it uses less digits than its factorization.

2021201012103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18938 (or 18924 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2021201012103 its reverse (3012101021202), we get a palindrome (5033302033305).

Subtracting 2021201012103 from its reverse (3012101021202), we obtain a palindrome (990900009099).

The spelling of 2021201012103 in words is "two trillion, twenty-one billion, two hundred one million, twelve thousand, one hundred three".