13321321043122 has 4 divisors (see below), whose sum is σ = 19981981564686. Its totient is φ = 6660660521560.

The previous prime is 13321321043047. The next prime is 13321321043159. The reversal of 13321321043122 is 22134012312331.

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

It can be written as a sum of positive squares in only one way, i.e., 9522217184481 + 3799103858641 = 3085809^2 + 1949129^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3330330260779 + ... + 3330330260782.

Almost surely, 2^{13321321043122} is an apocalyptic number.

13321321043122 is a deficient number, since it is larger than the sum of its proper divisors (6660660521564).

13321321043122 is an equidigital number, since it uses as much as digits as its factorization.

13321321043122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6660660521563.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 13321321043122 its reverse (22134012312331), we get a palindrome (35455333355453).

The spelling of 13321321043122 in words is "thirteen trillion, three hundred twenty-one billion, three hundred twenty-one million, forty-three thousand, one hundred twenty-two".