11543313 has 8 divisors (see below), whose sum is σ = 15540928. Its totient is φ = 7620624.

The previous prime is 11543293. The next prime is 11543339. The reversal of 11543313 is 31334511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11543313 - 2⁶ = 11543249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11543313.

It is not an unprimeable number, because it can be changed into a prime (11543353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18370 + ... + 18987.

It is an arithmetic number, because the mean of its divisors is an integer number (1942616).

Almost surely, 2^11543313 is an apocalyptic number.

It is an amenable number.

11543313 is a deficient number, since it is larger than the sum of its proper divisors (3997615).

11543313 is a wasteful number, since it uses less digits than its factorization.

11543313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37463.

The product of its digits is 540, while the sum is 21.

The square root of 11543313 is about 3397.5451431879. The cubic root of 11543313 is about 226.0008940889. Note that the first 3 decimals are identical.

Adding to 11543313 its reverse (31334511), we get a palindrome (42877824).

The spelling of 11543313 in words is "eleven million, five hundred forty-three thousand, three hundred thirteen".