11701191 has 4 divisors (see below), whose sum is σ = 15601592. Its totient is φ = 7800792.

The previous prime is 11701171. The next prime is 11701211. The reversal of 11701191 is 19110711.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11701171) and next prime (11701211).

It is not a de Polignac number, because 11701191 - 2⁶ = 11701127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11701111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1950196 + ... + 1950201.

It is an arithmetic number, because the mean of its divisors is an integer number (3900398).

Almost surely, 2^11701191 is an apocalyptic number.

11701191 is a deficient number, since it is larger than the sum of its proper divisors (3900401).

11701191 is an equidigital number, since it uses as much as digits as its factorization.

11701191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3900400.

The product of its (nonzero) digits is 63, while the sum is 21.

The square root of 11701191 is about 3420.7003668840. The cubic root of 11701191 is about 227.0265709224.

The spelling of 11701191 in words is "eleven million, seven hundred one thousand, one hundred ninety-one".