12081823 has 8 divisors (see below), whose sum is σ = 13043408. Its totient is φ = 11124864.

The previous prime is 12081809. The next prime is 12081829. The reversal of 12081823 is 32818021.

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

It is a cyclic number.

It is not a de Polignac number, because 12081823 - 2⁵ = 12081791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12081829) 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, 5911 + ... + 7687.

It is an arithmetic number, because the mean of its divisors is an integer number (1630426).

Almost surely, 2^12081823 is an apocalyptic number.

12081823 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12081823 is a deficient number, since it is larger than the sum of its proper divisors (961585).

12081823 is a wasteful number, since it uses less digits than its factorization.

12081823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2313.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 12081823 is about 3475.8916841582. The cubic root of 12081823 is about 229.4620255723.

Adding to 12081823 its reverse (32818021), we get a palindrome (44899844).

The spelling of 12081823 in words is "twelve million, eighty-one thousand, eight hundred twenty-three".