201200811 has 48 divisors (see below), whose sum is σ = 326541600. Its totient is φ = 109734912.

The previous prime is 201200801. The next prime is 201200821. The reversal of 201200811 is 118002102.

It is an interprime number because it is at equal distance from previous prime (201200801) and next prime (201200821).

It is not a de Polignac number, because 201200811 - 2⁹ = 201200299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201200801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 464451 + ... + 464883.

It is an arithmetic number, because the mean of its divisors is an integer number (6802950).

Almost surely, 2^201200811 is an apocalyptic number.

201200811 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

201200811 is a deficient number, since it is larger than the sum of its proper divisors (125340789).

201200811 is a wasteful number, since it uses less digits than its factorization.

201200811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588 (or 581 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 201200811 is about 14184.5271687145. The cubic root of 201200811 is about 585.9716106023.

Adding to 201200811 its reverse (118002102), we get a palindrome (319202913).

The spelling of 201200811 in words is "two hundred one million, two hundred thousand, eight hundred eleven".