1312043651213 has 8 divisors (see below), whose sum is σ = 1313103960000. Its totient is φ = 1310983592128.

The previous prime is 1312043651203. The next prime is 1312043651227. The reversal of 1312043651213 is 3121563402131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312043651213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312043651213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312043651203) 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, 11273045 + ... + 11388837.

It is an arithmetic number, because the mean of its divisors is an integer number (164137995000).

Almost surely, 2^{1312043651213} is an apocalyptic number.

It is an amenable number.

1312043651213 is a deficient number, since it is larger than the sum of its proper divisors (1060308787).

1312043651213 is a wasteful number, since it uses less digits than its factorization.

1312043651213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124851.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 1312043651213 in words is "one trillion, three hundred twelve billion, forty-three million, six hundred fifty-one thousand, two hundred thirteen".