11531113 has 8 divisors (see below), whose sum is σ = 12607200. Its totient is φ = 10459680.

The previous prime is 11531111. The next prime is 11531123. The reversal of 11531113 is 31113511.

11531113 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11531113 - 2¹ = 11531111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11531111) 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, 5938 + ... + 7636.

It is an arithmetic number, because the mean of its divisors is an integer number (1575900).

Almost surely, 2^11531113 is an apocalyptic number.

It is an amenable number.

11531113 is a deficient number, since it is larger than the sum of its proper divisors (1076087).

11531113 is a wasteful number, since it uses less digits than its factorization.

11531113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327.

The product of its digits is 45, while the sum is 16.

The square root of 11531113 is about 3395.7492545829. The cubic root of 11531113 is about 225.9212467400.

Adding to 11531113 its reverse (31113511), we get a palindrome (42644624).

The spelling of 11531113 in words is "eleven million, five hundred thirty-one thousand, one hundred thirteen".