1313323320213 has 6 divisors (see below), whose sum is σ = 1897022573654. Its totient is φ = 875548880136.

The previous prime is 1313323320181. The next prime is 1313323320217. The reversal of 1313323320213 is 3120233233131.

1313323320213 is a `hidden beast` number, since 1 + 3 + 1 + 3 + 323 + 320 + 2 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1042046931249 + 271276388964 = 1020807^2 + 520842^2 .

It is not a de Polignac number, because 1313323320213 - 2⁵ = 1313323320181 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 (1313323320217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72962406670 + ... + 72962406687.

Almost surely, 2^{1313323320213} is an apocalyptic number.

It is an amenable number.

1313323320213 is a deficient number, since it is larger than the sum of its proper divisors (583699253441).

1313323320213 is a wasteful number, since it uses less digits than its factorization.

1313323320213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145924813363 (or 145924813360 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 1313323320213 its reverse (3120233233131), we get a palindrome (4433556553344).

The spelling of 1313323320213 in words is "one trillion, three hundred thirteen billion, three hundred twenty-three million, three hundred twenty thousand, two hundred thirteen".