12308798881 has 4 divisors (see below), whose sum is σ = 13032845892. Its totient is φ = 11584751872.

The previous prime is 12308798851. The next prime is 12308798903. The reversal of 12308798881 is 18889780321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3689347600 + 8619451281 = 60740^2 + 92841^2 .

It is a cyclic number.

It is not a de Polignac number, because 12308798881 - 2⁵ = 12308798849 is a prime.

It is a super-2 number, since 2×12308798881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12308798851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362023480 + ... + 362023513.

It is an arithmetic number, because the mean of its divisors is an integer number (3258211473).

Almost surely, 2^12308798881 is an apocalyptic number.

It is an amenable number.

12308798881 is a deficient number, since it is larger than the sum of its proper divisors (724047011).

12308798881 is an equidigital number, since it uses as much as digits as its factorization.

12308798881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724047010.

The product of its (nonzero) digits is 1548288, while the sum is 55.

The spelling of 12308798881 in words is "twelve billion, three hundred eight million, seven hundred ninety-eight thousand, eight hundred eighty-one".