2020020001 has 4 divisors (see below), whose sum is σ = 2021499072. Its totient is φ = 2018540932.

The previous prime is 2020019999. The next prime is 2020020029. The reversal of 2020020001 is 1000200202.

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 2020020001 - 2¹ = 2020019999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020020031) 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, 737485 + ... + 740218.

It is an arithmetic number, because the mean of its divisors is an integer number (505374768).

Almost surely, 2^2020020001 is an apocalyptic number.

It is an amenable number.

2020020001 is a deficient number, since it is larger than the sum of its proper divisors (1479071).

2020020001 is a wasteful number, since it uses less digits than its factorization.

2020020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479070.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 2020020001 is about 44944.6326161423. The cubic root of 2020020001 is about 1264.1110370279. Note that the first 3 decimals are identical.

Adding to 2020020001 its reverse (1000200202), we get a palindrome (3020220203).

The spelling of 2020020001 in words is "two billion, twenty million, twenty thousand, one".