11005423 has 8 divisors (see below), whose sum is σ = 12929616. Its totient is φ = 9235200.

The previous prime is 11005399. The next prime is 11005433. The reversal of 11005423 is 32450011.

11005423 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11005423 - 2¹⁷ = 10874351 is a prime.

It is a super-2 number, since 2×11005423² = 242238670817858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11005397 and 11005406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11005433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38338 + ... + 38623.

It is an arithmetic number, because the mean of its divisors is an integer number (1616202).

Almost surely, 2^11005423 is an apocalyptic number.

11005423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11005423 is a deficient number, since it is larger than the sum of its proper divisors (1924193).

11005423 is a wasteful number, since it uses less digits than its factorization.

11005423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76985.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 11005423 is about 3317.4422376283. The cubic root of 11005423 is about 222.4345504588.

Adding to 11005423 its reverse (32450011), we get a palindrome (43455434).

The spelling of 11005423 in words is "eleven million, five thousand, four hundred twenty-three".