11310913 has 4 divisors (see below), whose sum is σ = 11376468. Its totient is φ = 11245360.

The previous prime is 11310911. The next prime is 11310919. The reversal of 11310913 is 31901311.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4592449 + 6718464 = 2143^2 + 2592^2 .

It is a cyclic number.

It is not a de Polignac number, because 11310913 - 2¹ = 11310911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11310911) 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 3 ways as a sum of consecutive naturals, for example, 32518 + ... + 32863.

It is an arithmetic number, because the mean of its divisors is an integer number (2844117).

Almost surely, 2^11310913 is an apocalyptic number.

It is an amenable number.

11310913 is a deficient number, since it is larger than the sum of its proper divisors (65555).

11310913 is an equidigital number, since it uses as much as digits as its factorization.

11310913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65554.

The product of its (nonzero) digits is 81, while the sum is 19.

The square root of 11310913 is about 3363.1700819316. The cubic root of 11310913 is about 224.4739182303.

It can be divided in two parts, 113 and 10913, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 11310913 in words is "eleven million, three hundred ten thousand, nine hundred thirteen".