2020134421 has 4 divisors (see below), whose sum is σ = 2020817344. Its totient is φ = 2019451500.

The previous prime is 2020134409. The next prime is 2020134443. The reversal of 2020134421 is 1244310202.

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 2020134421 - 2⁹ = 2020133909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020134481) 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, 337005 + ... + 342946.

It is an arithmetic number, because the mean of its divisors is an integer number (505204336).

Almost surely, 2^2020134421 is an apocalyptic number.

It is an amenable number.

2020134421 is a deficient number, since it is larger than the sum of its proper divisors (682923).

2020134421 is an equidigital number, since it uses as much as digits as its factorization.

2020134421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682922.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2020134421 is about 44945.9054976090. The cubic root of 2020134421 is about 1264.1349042593.

Adding to 2020134421 its reverse (1244310202), we get a palindrome (3264444623).

The spelling of 2020134421 in words is "two billion, twenty million, one hundred thirty-four thousand, four hundred twenty-one".