2000000001 has 4 divisors (see below), whose sum is σ = 2666666672. Its totient is φ = 1333333332.

The previous prime is 1999999973. The next prime is 2000000011. The reversal of 2000000001 is 1000000002.

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 not a de Polignac number, because 2000000001 - 2⁷ = 1999999873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (3), and also a Moran number because the ratio is a prime number: 666666667 = 2000000001 / (2 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000000011) 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, 333333331 + ... + 333333336.

It is an arithmetic number, because the mean of its divisors is an integer number (666666668).

Almost surely, 2^2000000001 is an apocalyptic number.

It is an amenable number.

2000000001 is a deficient number, since it is larger than the sum of its proper divisors (666666671).

2000000001 is an equidigital number, since it uses as much as digits as its factorization.

2000000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666666670.

The product of its (nonzero) digits is 2, while the sum is 3.

The square root of 2000000001 is about 44721.3595611761. The cubic root of 2000000001 is about 1259.9210501049.

Adding to 2000000001 its reverse (1000000002), we get a palindrome (3000000003).

Subtracting from 2000000001 its reverse (1000000002), we obtain a palindrome (999999999).

The spelling of 2000000001 in words is "two billion, one", and thus it is an aban number and an uban number.