2020356121 has 4 divisors (see below), whose sum is σ = 2308978432. Its totient is φ = 1731733812.

The previous prime is 2020356119. The next prime is 2020356181. The reversal of 2020356121 is 1216530202.

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 2020356121 - 2¹ = 2020356119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020356092 and 2020356101.

It is not an unprimeable number, because it can be changed into a prime (2020356181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144311145 + ... + 144311158.

It is an arithmetic number, because the mean of its divisors is an integer number (577244608).

Almost surely, 2^2020356121 is an apocalyptic number.

It is an amenable number.

2020356121 is a deficient number, since it is larger than the sum of its proper divisors (288622311).

2020356121 is an equidigital number, since it uses as much as digits as its factorization.

2020356121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288622310.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2020356121 is about 44948.3717280170. The cubic root of 2020356121 is about 1264.1811468020.

Adding to 2020356121 its reverse (1216530202), we get a palindrome (3236886323).

The spelling of 2020356121 in words is "two billion, twenty million, three hundred fifty-six thousand, one hundred twenty-one".