11980841 has 2 divisors, whose sum is σ = 11980842. Its totient is φ = 11980840.

The previous prime is 11980819. The next prime is 11980847. The reversal of 11980841 is 14808911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11022400 + 958441 = 3320^2 + 979^2 .

It is a cyclic number.

It is not a de Polignac number, because 11980841 - 2⁶ = 11980777 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11980798 and 11980807.

It is not a weakly prime, because it can be changed into another prime (11980847) 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 as a sum of consecutive naturals, namely, 5990420 + 5990421.

It is an arithmetic number, because the mean of its divisors is an integer number (5990421).

Almost surely, 2^11980841 is an apocalyptic number.

It is an amenable number.

11980841 is a deficient number, since it is larger than the sum of its proper divisors (1).

11980841 is an equidigital number, since it uses as much as digits as its factorization.

11980841 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 32.

The square root of 11980841 is about 3461.3351470206. The cubic root of 11980841 is about 228.8209414973.

It can be divided in two parts, 11980 and 841, that added together give a palindrome (12821).

The spelling of 11980841 in words is "eleven million, nine hundred eighty thousand, eight hundred forty-one".