2020080121 has 4 divisors (see below), whose sum is σ = 2022438132. Its totient is φ = 2017722112.

The previous prime is 2020080113. The next prime is 2020080137. The reversal of 2020080121 is 1210800202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1210800202 = 2 ⋅605400101.

It can be written as a sum of positive squares in 2 ways, for example, as 1192942521 + 827137600 = 34539^2 + 28760^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020080121 - 2³ = 2020080113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020080095 and 2020080104.

It is not an unprimeable number, because it can be changed into a prime (2020080421) 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, 1177720 + ... + 1179433.

It is an arithmetic number, because the mean of its divisors is an integer number (505609533).

Almost surely, 2^2020080121 is an apocalyptic number.

It is an amenable number.

2020080121 is a deficient number, since it is larger than the sum of its proper divisors (2358011).

2020080121 is an equidigital number, since it uses as much as digits as its factorization.

2020080121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358010.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 2020080121 is about 44945.3014340765. The cubic root of 2020080121 is about 1264.1235777621.

Adding to 2020080121 its reverse (1210800202), we get a palindrome (3230880323).

The spelling of 2020080121 in words is "two billion, twenty million, eighty thousand, one hundred twenty-one".