12361823 has 4 divisors (see below), whose sum is σ = 12391608. Its totient is φ = 12332040.

The previous prime is 12361819. The next prime is 12361829. The reversal of 12361823 is 32816321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32816321 = 31 ⋅1058591.

It is a cyclic number.

It is not a de Polignac number, because 12361823 - 2² = 12361819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12361792 and 12361801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12361829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14261 + ... + 15102.

It is an arithmetic number, because the mean of its divisors is an integer number (3097902).

Almost surely, 2^12361823 is an apocalyptic number.

12361823 is a deficient number, since it is larger than the sum of its proper divisors (29785).

12361823 is an equidigital number, since it uses as much as digits as its factorization.

12361823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29784.

The product of its digits is 1728, while the sum is 26.

The square root of 12361823 is about 3515.9384238067. The cubic root of 12361823 is about 231.2211234457.

The spelling of 12361823 in words is "twelve million, three hundred sixty-one thousand, eight hundred twenty-three".