12655300243 has 4 divisors (see below), whose sum is σ = 12698492688. Its totient is φ = 12612107800.

The previous prime is 12655300241. The next prime is 12655300253. The reversal of 12655300243 is 34200355621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34200355621 = 181 ⋅188952241.

It is a cyclic number.

It is not a de Polignac number, because 12655300243 - 2¹ = 12655300241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12655300241) 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, 21595783 + ... + 21596368.

It is an arithmetic number, because the mean of its divisors is an integer number (3174623172).

Almost surely, 2^12655300243 is an apocalyptic number.

12655300243 is a deficient number, since it is larger than the sum of its proper divisors (43192445).

12655300243 is an equidigital number, since it uses as much as digits as its factorization.

12655300243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43192444.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 12655300243 its reverse (34200355621), we get a palindrome (46855655864).

The spelling of 12655300243 in words is "twelve billion, six hundred fifty-five million, three hundred thousand, two hundred forty-three".