1313320213213 has 8 divisors (see below), whose sum is σ = 1390623769080. Its totient is φ = 1236022149120.

The previous prime is 1313320213181. The next prime is 1313320213241. The reversal of 1313320213213 is 3123120233131.

It can be written as a sum of positive squares in 4 ways, for example, as 37093604409 + 1276226608804 = 192597^2 + 1129702^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1313320213213 - 2⁵ = 1313320213181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313320213613) 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, 875428 + ... + 1842013.

It is an arithmetic number, because the mean of its divisors is an integer number (173827971135).

Almost surely, 2^{1313320213213} is an apocalyptic number.

It is an amenable number.

1313320213213 is a deficient number, since it is larger than the sum of its proper divisors (77303555867).

1313320213213 is a wasteful number, since it uses less digits than its factorization.

1313320213213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745887.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1313320213213 its reverse (3123120233131), we get a palindrome (4436440446344).

The spelling of 1313320213213 in words is "one trillion, three hundred thirteen billion, three hundred twenty million, two hundred thirteen thousand, two hundred thirteen".