11347121 has 4 divisors (see below), whose sum is σ = 11447652. Its totient is φ = 11246592.

The previous prime is 11347117. The next prime is 11347129. The reversal of 11347121 is 12174311.

It is a happy number.

11347121 is digitally balanced in base 3, 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.

It can be written as a sum of positive squares in 2 ways, for example, as 384400 + 10962721 = 620^2 + 3311^2 .

It is a cyclic number.

It is not a de Polignac number, because 11347121 - 2² = 11347117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11347093 and 11347102.

It is not an unprimeable number, because it can be changed into a prime (11347129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50096 + ... + 50321.

It is an arithmetic number, because the mean of its divisors is an integer number (2861913).

Almost surely, 2^11347121 is an apocalyptic number.

It is an amenable number.

11347121 is a deficient number, since it is larger than the sum of its proper divisors (100531).

11347121 is a wasteful number, since it uses less digits than its factorization.

11347121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100530.

The product of its digits is 168, while the sum is 20.

The square root of 11347121 is about 3368.5487973310. The cubic root of 11347121 is about 224.7131884610.

The spelling of 11347121 in words is "eleven million, three hundred forty-seven thousand, one hundred twenty-one".