2020421105 has 8 divisors (see below), whose sum is σ = 2425761000. Its totient is φ = 1615499776.

The previous prime is 2020421099. The next prime is 2020421147. The reversal of 2020421105 is 5011240202.

It can be written as a sum of positive squares in 4 ways, for example, as 954006769 + 1066414336 = 30887^2 + 32656^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2020421105 - 2⁴ = 2020421089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93920 + ... + 113409.

It is an arithmetic number, because the mean of its divisors is an integer number (303220125).

Almost surely, 2^2020421105 is an apocalyptic number.

It is an amenable number.

2020421105 is a deficient number, since it is larger than the sum of its proper divisors (405339895).

2020421105 is a wasteful number, since it uses less digits than its factorization.

2020421105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209283.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 2020421105 is about 44949.0945959983. The cubic root of 2020421105 is about 1264.1947006281.

Adding to 2020421105 its reverse (5011240202), we get a palindrome (7031661307).

The spelling of 2020421105 in words is "two billion, twenty million, four hundred twenty-one thousand, one hundred five".