11591101 has 4 divisors (see below), whose sum is σ = 11904412. Its totient is φ = 11277792.

The previous prime is 11591089. The next prime is 11591113. The reversal of 11591101 is 10119511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10119511 = 269 ⋅37619.

It is an interprime number because it is at equal distance from previous prime (11591089) and next prime (11591113).

It can be written as a sum of positive squares in 2 ways, for example, as 6255001 + 5336100 = 2501^2 + 2310^2 .

It is a cyclic number.

It is not a de Polignac number, because 11591101 - 2⁷ = 11590973 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 (11591131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156600 + ... + 156673.

It is an arithmetic number, because the mean of its divisors is an integer number (2976103).

Almost surely, 2^11591101 is an apocalyptic number.

It is an amenable number.

11591101 is a deficient number, since it is larger than the sum of its proper divisors (313311).

11591101 is an equidigital number, since it uses as much as digits as its factorization.

11591101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313310.

The product of its (nonzero) digits is 45, while the sum is 19.

The square root of 11591101 is about 3404.5706043494. The cubic root of 11591101 is about 226.3123373502.

The spelling of 11591101 in words is "eleven million, five hundred ninety-one thousand, one hundred one".