12308928239 has 4 divisors (see below), whose sum is σ = 12844099056. Its totient is φ = 11773757424.

The previous prime is 12308928227. The next prime is 12308928241. The reversal of 12308928239 is 93282980321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12308928239 is a prime.

It is a super-2 number, since 2×12308928239² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12308928193 and 12308928202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12308928209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267585374 + ... + 267585419.

It is an arithmetic number, because the mean of its divisors is an integer number (3211024764).

Almost surely, 2^12308928239 is an apocalyptic number.

12308928239 is a deficient number, since it is larger than the sum of its proper divisors (535170817).

12308928239 is an equidigital number, since it uses as much as digits as its factorization.

12308928239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535170816.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 12308928239 in words is "twelve billion, three hundred eight million, nine hundred twenty-eight thousand, two hundred thirty-nine".