11011423 has 4 divisors (see below), whose sum is σ = 11040120. Its totient is φ = 10982728.

The previous prime is 11011409. The next prime is 11011471. The reversal of 11011423 is 32411011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32411011 = 1069 ⋅30319.

It is a cyclic number.

It is not a de Polignac number, because 11011423 - 2¹⁷ = 10880351 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011123) 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, 13765 + ... + 14542.

It is an arithmetic number, because the mean of its divisors is an integer number (2760030).

Almost surely, 2^11011423 is an apocalyptic number.

11011423 is a deficient number, since it is larger than the sum of its proper divisors (28697).

11011423 is an equidigital number, since it uses as much as digits as its factorization.

11011423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28696.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 11011423 is about 3318.3464255560. The cubic root of 11011423 is about 222.4749658322.

Adding to 11011423 its reverse (32411011), we get a palindrome (43422434).

The spelling of 11011423 in words is "eleven million, eleven thousand, four hundred twenty-three".