11368813 has 4 divisors (see below), whose sum is σ = 11633248. Its totient is φ = 11104380.

The previous prime is 11368807. The next prime is 11368823. The reversal of 11368813 is 31886311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31886311 = 293 ⋅108827.

It is a cyclic number.

It is not a de Polignac number, because 11368813 - 2⁵ = 11368781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11368823) 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, 132153 + ... + 132238.

It is an arithmetic number, because the mean of its divisors is an integer number (2908312).

Almost surely, 2^11368813 is an apocalyptic number.

It is an amenable number.

11368813 is a deficient number, since it is larger than the sum of its proper divisors (264435).

11368813 is an equidigital number, since it uses as much as digits as its factorization.

11368813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264434.

The product of its digits is 3456, while the sum is 31.

The square root of 11368813 is about 3371.7670441476. The cubic root of 11368813 is about 224.8562901235.

The spelling of 11368813 in words is "eleven million, three hundred sixty-eight thousand, eight hundred thirteen".