12308723 has 4 divisors (see below), whose sum is σ = 14067120. Its totient is φ = 10550328.

The previous prime is 12308717. The next prime is 12308743. The reversal of 12308723 is 32780321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32780321 = 7 ⋅4682903.

It is a cyclic number.

It is not a de Polignac number, because 12308723 - 2⁸ = 12308467 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12308692 and 12308701.

It is not an unprimeable number, because it can be changed into a prime (12308743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879188 + ... + 879201.

It is an arithmetic number, because the mean of its divisors is an integer number (3516780).

Almost surely, 2^12308723 is an apocalyptic number.

12308723 is a deficient number, since it is larger than the sum of its proper divisors (1758397).

12308723 is an equidigital number, since it uses as much as digits as its factorization.

12308723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758396.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 12308723 is about 3508.3789704078. The cubic root of 12308723 is about 230.8895794795.

It can be divided in two parts, 12308 and 723, that added together give a palindrome (13031).

The spelling of 12308723 in words is "twelve million, three hundred eight thousand, seven hundred twenty-three".