11911241 has 2 divisors, whose sum is σ = 11911242. Its totient is φ = 11911240.

The previous prime is 11911201. The next prime is 11911253. The reversal of 11911241 is 14211911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11363641 + 547600 = 3371^2 + 740^2 .

It is a cyclic number.

It is not a de Polignac number, because 11911241 - 2⁶ = 11911177 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11911201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5955620 + 5955621.

It is an arithmetic number, because the mean of its divisors is an integer number (5955621).

Almost surely, 2^11911241 is an apocalyptic number.

It is an amenable number.

11911241 is a deficient number, since it is larger than the sum of its proper divisors (1).

11911241 is an equidigital number, since it uses as much as digits as its factorization.

11911241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72, while the sum is 20.

The square root of 11911241 is about 3451.2665790982. The cubic root of 11911241 is about 228.3769861070.

The spelling of 11911241 in words is "eleven million, nine hundred eleven thousand, two hundred forty-one".