11381383 has 4 divisors (see below), whose sum is σ = 12256888. Its totient is φ = 10505880.

The previous prime is 11381353. The next prime is 11381393. The reversal of 11381383 is 38318311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11381383 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 (11381303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437733 + ... + 437758.

It is an arithmetic number, because the mean of its divisors is an integer number (3064222).

Almost surely, 2^11381383 is an apocalyptic number.

11381383 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11381383 is a deficient number, since it is larger than the sum of its proper divisors (875505).

11381383 is an equidigital number, since it uses as much as digits as its factorization.

11381383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875504.

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

The square root of 11381383 is about 3373.6305369735. The cubic root of 11381383 is about 224.9391308597.

Adding to 11381383 its reverse (38318311), we get a palindrome (49699694).

The spelling of 11381383 in words is "eleven million, three hundred eighty-one thousand, three hundred eighty-three".