11520303 has 16 divisors (see below), whose sum is σ = 15842400. Its totient is φ = 7441920.

The previous prime is 11520293. The next prime is 11520307. The reversal of 11520303 is 30302511.

It is a happy number.

It is not a de Polignac number, because 11520303 - 2⁴ = 11520287 is a prime.

It is a super-3 number, since 3×11520303³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11520307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27963 + ... + 28371.

It is an arithmetic number, because the mean of its divisors is an integer number (990150).

Almost surely, 2^11520303 is an apocalyptic number.

11520303 is a deficient number, since it is larger than the sum of its proper divisors (4322097).

11520303 is a wasteful number, since it uses less digits than its factorization.

11520303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 11520303 is about 3394.1571855175. The cubic root of 11520303 is about 225.8506270107.

Adding to 11520303 its reverse (30302511), we get a palindrome (41822814).

The spelling of 11520303 in words is "eleven million, five hundred twenty thousand, three hundred three".