2000001811 has 8 divisors (see below), whose sum is σ = 2055526704. Its totient is φ = 1944554400.

The previous prime is 2000001743. The next prime is 2000001821. The reversal of 2000001811 is 1181000002.

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 2000001811 - 2¹¹ = 1999999763 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2000001791 and 2000001800.

It is not an unprimeable number, because it can be changed into a prime (2000001821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35061 + ... + 72313.

It is an arithmetic number, because the mean of its divisors is an integer number (256940838).

Almost surely, 2^2000001811 is an apocalyptic number.

2000001811 is a deficient number, since it is larger than the sum of its proper divisors (55524893).

2000001811 is a wasteful number, since it uses less digits than its factorization.

2000001811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38741.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 2000001811 is about 44721.3797975867. The cubic root of 2000001811 is about 1259.9214301809.

Adding to 2000001811 its reverse (1181000002), we get a palindrome (3181001813).

The spelling of 2000001811 in words is "two billion, one thousand, eight hundred eleven".