11103313 has 8 divisors (see below), whose sum is σ = 12028968. Its totient is φ = 10187904.

The previous prime is 11103311. The next prime is 11103343. The reversal of 11103313 is 31330111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1721344 + 9381969 = 1312^2 + 3063^2 .

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 11103313 - 2¹ = 11103311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11103293 and 11103302.

It is not an unprimeable number, because it can be changed into a prime (11103311) 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, 220 + ... + 4717.

It is an arithmetic number, because the mean of its divisors is an integer number (1503621).

Almost surely, 2^11103313 is an apocalyptic number.

11103313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11103313 is a deficient number, since it is larger than the sum of its proper divisors (925655).

11103313 is a wasteful number, since it uses less digits than its factorization.

11103313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5123.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 11103313 is about 3332.1634113591. The cubic root of 11103313 is about 223.0921013515.

Adding to 11103313 its reverse (31330111), we get a palindrome (42433424).

The spelling of 11103313 in words is "eleven million, one hundred three thousand, three hundred thirteen".