2021302113 has 4 divisors (see below), whose sum is σ = 2695069488. Its totient is φ = 1347534740.

The previous prime is 2021302111. The next prime is 2021302121. The reversal of 2021302113 is 3112031202.

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 2021302113 - 2¹ = 2021302111 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2021302092 and 2021302101.

It is not an unprimeable number, because it can be changed into a prime (2021302111) 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, 336883683 + ... + 336883688.

It is an arithmetic number, because the mean of its divisors is an integer number (673767372).

Almost surely, 2^2021302113 is an apocalyptic number.

It is an amenable number.

2021302113 is a deficient number, since it is larger than the sum of its proper divisors (673767375).

2021302113 is an equidigital number, since it uses as much as digits as its factorization.

2021302113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673767374.

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

The square root of 2021302113 is about 44958.8935918134. The cubic root of 2021302113 is about 1264.3784253303.

Adding to 2021302113 its reverse (3112031202), we get a palindrome (5133333315).

The spelling of 2021302113 in words is "two billion, twenty-one million, three hundred two thousand, one hundred thirteen".