11241391 has 4 divisors (see below), whose sum is σ = 12847312. Its totient is φ = 9635472.

The previous prime is 11241389. The next prime is 11241443. The reversal of 11241391 is 19314211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19314211 = 7 ⋅2759173.

It is not a de Polignac number, because 11241391 - 2¹ = 11241389 is a prime.

It is a super-2 number, since 2×11241391² = 252737743229762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11241341) 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, 802950 + ... + 802963.

It is an arithmetic number, because the mean of its divisors is an integer number (3211828).

Almost surely, 2^11241391 is an apocalyptic number.

11241391 is a deficient number, since it is larger than the sum of its proper divisors (1605921).

11241391 is an equidigital number, since it uses as much as digits as its factorization.

11241391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605920.

The product of its digits is 216, while the sum is 22.

The square root of 11241391 is about 3352.8183666879. The cubic root of 11241391 is about 224.0130665741.

The spelling of 11241391 in words is "eleven million, two hundred forty-one thousand, three hundred ninety-one".