2020130121209 has 4 divisors (see below), whose sum is σ = 2044469038416. Its totient is φ = 1995791204004.

The previous prime is 2020130121193. The next prime is 2020130121239. The reversal of 2020130121209 is 9021210310202.

It is a happy number.

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 2020130121209 - 2⁴ = 2020130121193 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 (2020130121239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12169458479 + ... + 12169458644.

It is an arithmetic number, because the mean of its divisors is an integer number (511117259604).

Almost surely, 2^{2020130121209} is an apocalyptic number.

It is an amenable number.

2020130121209 is a deficient number, since it is larger than the sum of its proper divisors (24338917207).

2020130121209 is an equidigital number, since it uses as much as digits as its factorization.

2020130121209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24338917206.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 2020130121209 in words is "two trillion, twenty billion, one hundred thirty million, one hundred twenty-one thousand, two hundred nine".