11520191 has 2 divisors, whose sum is σ = 11520192. Its totient is φ = 11520190.

The previous prime is 11520083. The next prime is 11520227. The reversal of 11520191 is 19102511.

It is a strong prime.

It is an emirp because it is prime and its reverse (19102511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11520191 - 2¹⁸ = 11258047 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11520391) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5760095 + 5760096.

It is an arithmetic number, because the mean of its divisors is an integer number (5760096).

Almost surely, 2^11520191 is an apocalyptic number.

11520191 is a deficient number, since it is larger than the sum of its proper divisors (1).

11520191 is an equidigital number, since it uses as much as digits as its factorization.

11520191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 20.

The square root of 11520191 is about 3394.1406865361. The cubic root of 11520191 is about 225.8498951043.

It can be divided in two parts, 11520 and 191, that added together give a palindrome (11711).

The spelling of 11520191 in words is "eleven million, five hundred twenty thousand, one hundred ninety-one".