11533423 has 16 divisors (see below), whose sum is σ = 13063680. Its totient is φ = 10091200.

The previous prime is 11533393. The next prime is 11533433. The reversal of 11533423 is 32433511.

It is a cyclic number.

It is not a de Polignac number, because 11533423 - 2¹⁷ = 11402351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11533394 and 11533403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11533433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48138 + ... + 48376.

It is an arithmetic number, because the mean of its divisors is an integer number (816480).

Almost surely, 2^11533423 is an apocalyptic number.

11533423 is a deficient number, since it is larger than the sum of its proper divisors (1530257).

11533423 is a wasteful number, since it uses less digits than its factorization.

11533423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398.

The product of its digits is 1080, while the sum is 22.

The square root of 11533423 is about 3396.0893686710. The cubic root of 11533423 is about 225.9363318185.

Adding to 11533423 its reverse (32433511), we get a palindrome (43966934).

The spelling of 11533423 in words is "eleven million, five hundred thirty-three thousand, four hundred twenty-three".