11383813 has 4 divisors (see below), whose sum is σ = 13010080. Its totient is φ = 9757548.

The previous prime is 11383807. The next prime is 11383843. The reversal of 11383813 is 31838311.

11383813 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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: 31838311 = 1031 ⋅30881.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11383813 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 (11383843) 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, 813123 + ... + 813136.

It is an arithmetic number, because the mean of its divisors is an integer number (3252520).

Almost surely, 2^11383813 is an apocalyptic number.

It is an amenable number.

11383813 is a deficient number, since it is larger than the sum of its proper divisors (1626267).

11383813 is an equidigital number, since it uses as much as digits as its factorization.

11383813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626266.

The product of its digits is 1728, while the sum is 28.

The square root of 11383813 is about 3373.9906638875. The cubic root of 11383813 is about 224.9551383810.

It can be divided in two parts, 1138381 and 3, that multiplied together give a palindrome (3415143).

The spelling of 11383813 in words is "eleven million, three hundred eighty-three thousand, eight hundred thirteen".