2021020013113 has 4 divisors (see below), whose sum is σ = 2021025510288. Its totient is φ = 2021014515940.

The previous prime is 2021020013071. The next prime is 2021020013123. The reversal of 2021020013113 is 3113100201202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2021020013113 - 2¹³ = 2021020004921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021020013123) 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, 2154283 + ... + 2946688.

It is an arithmetic number, because the mean of its divisors is an integer number (505256377572).

Almost surely, 2^{2021020013113} is an apocalyptic number.

It is an amenable number.

2021020013113 is a deficient number, since it is larger than the sum of its proper divisors (5497175).

2021020013113 is an equidigital number, since it uses as much as digits as its factorization.

2021020013113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5497174.

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

Adding to 2021020013113 its reverse (3113100201202), we get a palindrome (5134120214315).

The spelling of 2021020013113 in words is "two trillion, twenty-one billion, twenty million, thirteen thousand, one hundred thirteen".