11520443 has 4 divisors (see below), whose sum is σ = 12567768. Its totient is φ = 10473120.

The previous prime is 11520433. The next prime is 11520461. The reversal of 11520443 is 34402511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11520443 - 2¹⁰ = 11519419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11520433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523646 + ... + 523667.

It is an arithmetic number, because the mean of its divisors is an integer number (3141942).

Almost surely, 2^11520443 is an apocalyptic number.

11520443 is a deficient number, since it is larger than the sum of its proper divisors (1047325).

11520443 is a wasteful number, since it uses less digits than its factorization.

11520443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047324.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 11520443 is about 3394.1778091314. The cubic root of 11520443 is about 225.8515418871.

Adding to 11520443 its reverse (34402511), we get a palindrome (45922954).

The spelling of 11520443 in words is "eleven million, five hundred twenty thousand, four hundred forty-three".