12800278105333 has 4 divisors (see below), whose sum is σ = 12819880369548. Its totient is φ = 12780675841120.

The previous prime is 12800278105301. The next prime is 12800278105339. The reversal of 12800278105333 is 33350187200821.

It is a happy number.

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 2094830706609 + 10705447398724 = 1447353^2 + 3271918^2 .

It is a cyclic number.

It is not a de Polignac number, because 12800278105333 - 2⁵ = 12800278105301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12800278105333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12800278105339) 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, 9801131128 + ... + 9801132433.

It is an arithmetic number, because the mean of its divisors is an integer number (3204970092387).

Almost surely, 2^{12800278105333} is an apocalyptic number.

It is an amenable number.

12800278105333 is a deficient number, since it is larger than the sum of its proper divisors (19602264215).

12800278105333 is an equidigital number, since it uses as much as digits as its factorization.

12800278105333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19602264214.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 12800278105333 in words is "twelve trillion, eight hundred billion, two hundred seventy-eight million, one hundred five thousand, three hundred thirty-three".