11381823 has 32 divisors (see below), whose sum is σ = 18083520. Its totient is φ = 7050240.

The previous prime is 11381813. The next prime is 11381827. The reversal of 11381823 is 32818311.

It is not a de Polignac number, because 11381823 - 2¹³ = 11373631 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11381827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62793 + ... + 62973.

It is an arithmetic number, because the mean of its divisors is an integer number (565110).

Almost surely, 2^11381823 is an apocalyptic number.

11381823 is a deficient number, since it is larger than the sum of its proper divisors (6701697).

11381823 is a wasteful number, since it uses less digits than its factorization.

11381823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 338 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 11381823 is about 3373.6957479891. The cubic root of 11381823 is about 224.9420295098.

The spelling of 11381823 in words is "eleven million, three hundred eighty-one thousand, eight hundred twenty-three".