1313321211206 has 4 divisors (see below), whose sum is σ = 1969981816812. Its totient is φ = 656660605602.

The previous prime is 1313321211203. The next prime is 1313321211239. The reversal of 1313321211206 is 6021121233131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313321211203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328330302800 + ... + 328330302803.

It is an arithmetic number, because the mean of its divisors is an integer number (492495454203).

Almost surely, 2^{1313321211206} is an apocalyptic number.

1313321211206 is a deficient number, since it is larger than the sum of its proper divisors (656660605606).

1313321211206 is an equidigital number, since it uses as much as digits as its factorization.

1313321211206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656660605605.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 1313321211206 its reverse (6021121233131), we get a palindrome (7334442444337).

The spelling of 1313321211206 in words is "one trillion, three hundred thirteen billion, three hundred twenty-one million, two hundred eleven thousand, two hundred six".