11983211 has 2 divisors, whose sum is σ = 11983212. Its totient is φ = 11983210.

The previous prime is 11983201. The next prime is 11983217. The reversal of 11983211 is 11238911.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11983211 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11983217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5991605 + 5991606.

It is an arithmetic number, because the mean of its divisors is an integer number (5991606).

Almost surely, 2^11983211 is an apocalyptic number.

11983211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11983211 is an equidigital number, since it uses as much as digits as its factorization.

11983211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 26.

The square root of 11983211 is about 3461.6774835331. The cubic root of 11983211 is about 228.8360286373.

The spelling of 11983211 in words is "eleven million, nine hundred eighty-three thousand, two hundred eleven".