11013521 has 8 divisors (see below), whose sum is σ = 11628000. Its totient is φ = 10402560.

The previous prime is 11013517. The next prime is 11013523. The reversal of 11013521 is 12531011.

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 11013521 - 2² = 11013517 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11013496 and 11013505.

It is not an unprimeable number, because it can be changed into a prime (11013523) 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, 7886 + ... + 9176.

It is an arithmetic number, because the mean of its divisors is an integer number (1453500).

Almost surely, 2^11013521 is an apocalyptic number.

It is an amenable number.

11013521 is a deficient number, since it is larger than the sum of its proper divisors (614479).

11013521 is a wasteful number, since it uses less digits than its factorization.

11013521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 11013521 is about 3318.6625318040. The cubic root of 11013521 is about 222.4890942767.

Adding to 11013521 its reverse (12531011), we get a palindrome (23544532).

It can be divided in two parts, 110 and 13521, that added together give a palindrome (13631).

The spelling of 11013521 in words is "eleven million, thirteen thousand, five hundred twenty-one".