1312053642643 has 8 divisors (see below), whose sum is σ = 1354403743616. Its totient is φ = 1269705153600.

The previous prime is 1312053642617. The next prime is 1312053642659. The reversal of 1312053642643 is 3462463502131.

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-1312053642643 is a prime.

It is a super-2 number, since 2×1312053642643² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312053642596 and 1312053642605.

It is not an unprimeable number, because it can be changed into a prime (1312053642143) 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 7 ways as a sum of consecutive naturals, for example, 1375933 + ... + 2125393.

It is an arithmetic number, because the mean of its divisors is an integer number (169300467952).

Almost surely, 2^{1312053642643} is an apocalyptic number.

1312053642643 is a deficient number, since it is larger than the sum of its proper divisors (42350100973).

1312053642643 is an equidigital number, since it uses as much as digits as its factorization.

1312053642643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805965.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 1312053642643 in words is "one trillion, three hundred twelve billion, fifty-three million, six hundred forty-two thousand, six hundred forty-three".