12320442243 has 36 divisors (see below), whose sum is σ = 18499557024. Its totient is φ = 7895642400.

The previous prime is 12320442241. The next prime is 12320442257. The reversal of 12320442243 is 34224402321.

12320442243 is a `hidden beast` number, since 1 + 232 + 0 + 4 + 422 + 4 + 3 = 666.

It is not a de Polignac number, because 12320442243 - 2¹ = 12320442241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12320442241) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 17829528 + ... + 17830218.

It is an arithmetic number, because the mean of its divisors is an integer number (513876584).

Almost surely, 2^12320442243 is an apocalyptic number.

12320442243 is a deficient number, since it is larger than the sum of its proper divisors (6179114781).

12320442243 is an frugal number, since it uses more digits than its factorization.

12320442243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1496 (or 802 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 12320442243 its reverse (34224402321), we get a palindrome (46544844564).

The spelling of 12320442243 in words is "twelve billion, three hundred twenty million, four hundred forty-two thousand, two hundred forty-three".