11503113 has 8 divisors (see below), whose sum is σ = 16144800. Its totient is φ = 7265088.

The previous prime is 11503103. The next prime is 11503153. The reversal of 11503113 is 31130511.

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

It is not a de Polignac number, because 11503113 - 2⁶ = 11503049 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11503092 and 11503101.

It is not an unprimeable number, because it can be changed into a prime (11503103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100848 + ... + 100961.

It is an arithmetic number, because the mean of its divisors is an integer number (2018100).

Almost surely, 2^11503113 is an apocalyptic number.

It is an amenable number.

11503113 is a deficient number, since it is larger than the sum of its proper divisors (4641687).

11503113 is a wasteful number, since it uses less digits than its factorization.

11503113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201831.

The product of its (nonzero) digits is 45, while the sum is 15.

The square root of 11503113 is about 3391.6239473149. The cubic root of 11503113 is about 225.7382368851.

Adding to 11503113 its reverse (31130511), we get a palindrome (42633624).

The spelling of 11503113 in words is "eleven million, five hundred three thousand, one hundred thirteen".