2021010202103 has 4 divisors (see below), whose sum is σ = 2021414490000. Its totient is φ = 2020605914208.

The previous prime is 2021010202087. The next prime is 2021010202121. The reversal of 2021010202103 is 3012020101202.

It is a happy number.

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 2021010202103 - 2⁴ = 2021010202087 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 (2021010202163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202136450 + ... + 202146447.

It is an arithmetic number, because the mean of its divisors is an integer number (505353622500).

Almost surely, 2^{2021010202103} is an apocalyptic number.

2021010202103 is a deficient number, since it is larger than the sum of its proper divisors (404287897).

2021010202103 is an equidigital number, since it uses as much as digits as its factorization.

2021010202103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404287896.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2021010202103 its reverse (3012020101202), we get a palindrome (5033030303305).

The spelling of 2021010202103 in words is "two trillion, twenty-one billion, ten million, two hundred two thousand, one hundred three".