11680201 has 4 divisors (see below), whose sum is σ = 12578692. Its totient is φ = 10781712.

The previous prime is 11680189. The next prime is 11680213. The reversal of 11680201 is 10208611.

11680201 = T₁₃₃₄ + T₁₃₃₅ + ... + T₁₃₄₆.

11680201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (11680189) and next prime (11680213).

It can be written as a sum of positive squares in 2 ways, for example, as 6734025 + 4946176 = 2595^2 + 2224^2 .

It is a cyclic number.

It is not a de Polignac number, because 11680201 - 2¹³ = 11672009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11680261) 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, 449226 + ... + 449251.

It is an arithmetic number, because the mean of its divisors is an integer number (3144673).

Almost surely, 2^11680201 is an apocalyptic number.

It is an amenable number.

11680201 is a deficient number, since it is larger than the sum of its proper divisors (898491).

11680201 is an equidigital number, since it uses as much as digits as its factorization.

11680201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898490.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 11680201 is about 3417.6309045887. The cubic root of 11680201 is about 226.8907403064.

Adding to 11680201 its reverse (10208611), we get a palindrome (21888812).

It can be divided in two parts, 11680 and 201, that added together give a square (11881 = 109²).

The spelling of 11680201 in words is "eleven million, six hundred eighty thousand, two hundred one".