1312543678703 has 16 divisors (see below), whose sum is σ = 1347724984320. Its totient is φ = 1277667038400.

The previous prime is 1312543678631. The next prime is 1312543678717. The reversal of 1312543678703 is 3078763452131.

It is a cyclic number.

It is not a de Polignac number, because 1312543678703 - 2²⁴ = 1312526901487 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 (1312543678753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76484438 + ... + 76501596.

It is an arithmetic number, because the mean of its divisors is an integer number (84232811520).

Almost surely, 2^{1312543678703} is an apocalyptic number.

1312543678703 is a deficient number, since it is larger than the sum of its proper divisors (35181305617).

1312543678703 is a wasteful number, since it uses less digits than its factorization.

1312543678703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25918.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 1312543678703 in words is "one trillion, three hundred twelve billion, five hundred forty-three million, six hundred seventy-eight thousand, seven hundred three".