1312043316213 has 24 divisors (see below), whose sum is σ = 2049257024704. Its totient is φ = 731452700160.

The previous prime is 1312043316193. The next prime is 1312043316289. The reversal of 1312043316213 is 3126133402131.

It is a happy number.

It is not a de Polignac number, because 1312043316213 - 2⁹ = 1312043315701 is a prime.

It is a super-2 number, since 2×1312043316213² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312043316313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18548356 + ... + 18618957.

Almost surely, 2^{1312043316213} is an apocalyptic number.

It is an amenable number.

1312043316213 is a deficient number, since it is larger than the sum of its proper divisors (737213708491).

1312043316213 is an equidigital number, since it uses as much as digits as its factorization.

1312043316213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37167405 (or 37167364 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 1312043316213 its reverse (3126133402131), we get a palindrome (4438176718344).

The spelling of 1312043316213 in words is "one trillion, three hundred twelve billion, forty-three million, three hundred sixteen thousand, two hundred thirteen".