11780201 has 8 divisors (see below), whose sum is σ = 12504744. Its totient is φ = 11059200.

The previous prime is 11780191. The next prime is 11780207. The reversal of 11780201 is 10208711.

It can be written as a sum of positive squares in 4 ways, for example, as 7027801 + 4752400 = 2651^2 + 2180^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11780201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11780207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9641 + ... + 10793.

It is an arithmetic number, because the mean of its divisors is an integer number (1563093).

Almost surely, 2^11780201 is an apocalyptic number.

It is an amenable number.

11780201 is a deficient number, since it is larger than the sum of its proper divisors (724543).

11780201 is a wasteful number, since it uses less digits than its factorization.

11780201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1771.

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 11780201 is about 3432.2297417277. The cubic root of 11780201 is about 227.5364092595.

Adding to 11780201 its reverse (10208711), we get a palindrome (21988912).

The spelling of 11780201 in words is "eleven million, seven hundred eighty thousand, two hundred one".