12023523 has 12 divisors (see below), whose sum is σ = 18281640. Its totient is φ = 7593696.

The previous prime is 12023513. The next prime is 12023569. The reversal of 12023523 is 32532021.

12023523 is a `hidden beast` number, since 120 + 23 + 523 = 666.

It is not a de Polignac number, because 12023523 - 2⁴ = 12023507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12023496 and 12023505.

It is not an unprimeable number, because it can be changed into a prime (12023513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34986 + ... + 35327.

It is an arithmetic number, because the mean of its divisors is an integer number (1523470).

Almost surely, 2^12023523 is an apocalyptic number.

12023523 is a deficient number, since it is larger than the sum of its proper divisors (6258117).

12023523 is a wasteful number, since it uses less digits than its factorization.

12023523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70338 (or 70335 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 12023523 is about 3467.4952054761. The cubic root of 12023523 is about 229.0923459420.

Adding to 12023523 its reverse (32532021), we get a palindrome (44555544).

The spelling of 12023523 in words is "twelve million, twenty-three thousand, five hundred twenty-three".