1311300311213 has 2 divisors, whose sum is σ = 1311300311214. Its totient is φ = 1311300311212.

The previous prime is 1311300311203. The next prime is 1311300311309. The reversal of 1311300311213 is 3121130031131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1292409732964 + 18890578249 = 1136842^2 + 137443^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311300311213 - 2³⁰ = 1310226569389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311300311203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655650155606 + 655650155607.

It is an arithmetic number, because the mean of its divisors is an integer number (655650155607).

Almost surely, 2^{1311300311213} is an apocalyptic number.

It is an amenable number.

1311300311213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311300311213 is an equidigital number, since it uses as much as digits as its factorization.

1311300311213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 1311300311213 its reverse (3121130031131), we get a palindrome (4432430342344).

The spelling of 1311300311213 in words is "one trillion, three hundred eleven billion, three hundred million, three hundred eleven thousand, two hundred thirteen".