11340391 has 4 divisors (see below), whose sum is σ = 11374984. Its totient is φ = 11305800.

The previous prime is 11340383. The next prime is 11340401. The reversal of 11340391 is 19304311.

11340391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19304311 = 13 ⋅1484947.

It is a cyclic number.

It is not a de Polignac number, because 11340391 - 2³ = 11340383 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 (11340361) 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, 16800 + ... + 17461.

It is an arithmetic number, because the mean of its divisors is an integer number (2843746).

Almost surely, 2^11340391 is an apocalyptic number.

11340391 is a deficient number, since it is larger than the sum of its proper divisors (34593).

11340391 is an equidigital number, since it uses as much as digits as its factorization.

11340391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34592.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 11340391 is about 3367.5497026770. The cubic root of 11340391 is about 224.6687537289.

It can be divided in two parts, 113 and 40391, that added together give a palindrome (40504).

The spelling of 11340391 in words is "eleven million, three hundred forty thousand, three hundred ninety-one".