1313221320213 has 8 divisors (see below), whose sum is σ = 1910140102176. Its totient is φ = 795891709200.

The previous prime is 1313221320163. The next prime is 1313221320223. The reversal of 1313221320213 is 3120231223131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1313221320213 - 2⁶ = 1313221320149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313221320223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19897292698 + ... + 19897292763.

It is an arithmetic number, because the mean of its divisors is an integer number (238767512772).

Almost surely, 2^{1313221320213} is an apocalyptic number.

It is an amenable number.

1313221320213 is a deficient number, since it is larger than the sum of its proper divisors (596918781963).

1313221320213 is a wasteful number, since it uses less digits than its factorization.

1313221320213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39794585475.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1313221320213 its reverse (3120231223131), we get a palindrome (4433452543344).

The spelling of 1313221320213 in words is "one trillion, three hundred thirteen billion, two hundred twenty-one million, three hundred twenty thousand, two hundred thirteen".