2021200112103 has 4 divisors (see below), whose sum is σ = 2694933482808. Its totient is φ = 1347466741400.

The previous prime is 2021200112101. The next prime is 2021200112143. The reversal of 2021200112103 is 3012110021202.

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 2021200112103 - 2¹ = 2021200112101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021200112101) 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, 336866685348 + ... + 336866685353.

It is an arithmetic number, because the mean of its divisors is an integer number (673733370702).

Almost surely, 2^{2021200112103} is an apocalyptic number.

2021200112103 is a deficient number, since it is larger than the sum of its proper divisors (673733370705).

2021200112103 is an equidigital number, since it uses as much as digits as its factorization.

2021200112103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673733370704.

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

Adding to 2021200112103 its reverse (3012110021202), we get a palindrome (5033310133305).

Subtracting 2021200112103 from its reverse (3012110021202), we obtain a palindrome (990909909099).

The spelling of 2021200112103 in words is "two trillion, twenty-one billion, two hundred million, one hundred twelve thousand, one hundred three".