11315523 has 8 divisors (see below), whose sum is σ = 15974928. Its totient is φ = 7099904.

The previous prime is 11315519. The next prime is 11315533. The reversal of 11315523 is 32551311.

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

It is a cyclic number.

It is not a de Polignac number, because 11315523 - 2² = 11315519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11315523.

It is not an unprimeable number, because it can be changed into a prime (11315533) 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 7 ways as a sum of consecutive naturals, for example, 110886 + ... + 110987.

It is an arithmetic number, because the mean of its divisors is an integer number (1996866).

Almost surely, 2^11315523 is an apocalyptic number.

11315523 is a deficient number, since it is larger than the sum of its proper divisors (4659405).

11315523 is a wasteful number, since it uses less digits than its factorization.

11315523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221893.

The product of its digits is 450, while the sum is 21.

The square root of 11315523 is about 3363.8553773907. The cubic root of 11315523 is about 224.5044104404.

Adding to 11315523 its reverse (32551311), we get a palindrome (43866834).

The spelling of 11315523 in words is "eleven million, three hundred fifteen thousand, five hundred twenty-three".