201000011 has 4 divisors (see below), whose sum is σ = 201118392. Its totient is φ = 200881632.

The previous prime is 200999983. The next prime is 201000049. The reversal of 201000011 is 110000102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201000011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200999959 and 201000004.

It is not an unprimeable number, because it can be changed into a prime (201000091) 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, 56606 + ... + 60051.

It is an arithmetic number, because the mean of its divisors is an integer number (50279598).

Almost surely, 2^201000011 is an apocalyptic number.

201000011 is a deficient number, since it is larger than the sum of its proper divisors (118381).

201000011 is a wasteful number, since it uses less digits than its factorization.

201000011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118380.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 201000011 is about 14177.4472666979. The cubic root of 201000011 is about 585.7766109509.

Adding to 201000011 its reverse (110000102), we get a palindrome (311000113).

Subtracting from 201000011 its reverse (110000102), we obtain a palindrome (90999909).

The spelling of 201000011 in words is "two hundred one million, eleven", and thus it is an aban number.