11201291 has 4 divisors (see below), whose sum is σ = 11210784. Its totient is φ = 11191800.

The previous prime is 11201263. The next prime is 11201293. The reversal of 11201291 is 19210211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11201291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11201293) 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, 2675 + ... + 5436.

It is an arithmetic number, because the mean of its divisors is an integer number (2802696).

Almost surely, 2^11201291 is an apocalyptic number.

11201291 is a deficient number, since it is larger than the sum of its proper divisors (9493).

11201291 is an equidigital number, since it uses as much as digits as its factorization.

11201291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9492.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 11201291 is about 3346.8329805952. The cubic root of 11201291 is about 223.7463846778.

The spelling of 11201291 in words is "eleven million, two hundred one thousand, two hundred ninety-one".