11521113 has 8 divisors (see below), whose sum is σ = 15379968. Its totient is φ = 7671504.

The previous prime is 11521051. The next prime is 11521187. The reversal of 11521113 is 31112511.

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

It is not a de Polignac number, because 11521113 - 2⁹ = 11520601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11521092 and 11521101.

It is not an unprimeable number, because it can be changed into a prime (11521513) 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, 1495 + ... + 5027.

It is an arithmetic number, because the mean of its divisors is an integer number (1922496).

Almost surely, 2^11521113 is an apocalyptic number.

It is an amenable number.

11521113 is a deficient number, since it is larger than the sum of its proper divisors (3858855).

11521113 is a wasteful number, since it uses less digits than its factorization.

11521113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4623.

The product of its digits is 30, while the sum is 15.

The square root of 11521113 is about 3394.2765061203. The cubic root of 11521113 is about 225.8559201215.

Adding to 11521113 its reverse (31112511), we get a palindrome (42633624).

The spelling of 11521113 in words is "eleven million, five hundred twenty-one thousand, one hundred thirteen".