2020421313 has 14 divisors (see below), whose sum is σ = 3029247314. Its totient is φ = 1346947056.

The previous prime is 2020421309. The next prime is 2020421317. The reversal of 2020421313 is 3131240202.

2020421313 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2020421309) and next prime (2020421317).

It can be written as a sum of positive squares in only one way, i.e., 2018525184 + 1896129 = 44928^2 + 1377^2 .

It is not a de Polignac number, because 2020421313 - 2² = 2020421309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2020421317) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1385020 + ... + 1386477.

Almost surely, 2^2020421313 is an apocalyptic number.

It is an amenable number.

2020421313 is a deficient number, since it is larger than the sum of its proper divisors (1008826001).

2020421313 is an frugal number, since it uses more digits than its factorization.

2020421313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771515 (or 2771500 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2020421313 is about 44949.0969097267. The cubic root of 2020421313 is about 1264.1947440106.

Adding to 2020421313 its reverse (3131240202), we get a palindrome (5151661515).

The spelling of 2020421313 in words is "two billion, twenty million, four hundred twenty-one thousand, three hundred thirteen".