1311317315005 has 16 divisors (see below), whose sum is σ = 1575012394800. Its totient is φ = 1048099852800.

The previous prime is 1311317314933. The next prime is 1311317315039. The reversal of 1311317315005 is 5005137131131.

It can be written as a sum of positive squares in 8 ways, for example, as 242184062884 + 1069133252121 = 492122^2 + 1033989^2 .

It is not a de Polignac number, because 1311317315005 - 2⁹ = 1311317314493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28183801 + ... + 28230289.

It is an arithmetic number, because the mean of its divisors is an integer number (98438274675).

Almost surely, 2^{1311317315005} is an apocalyptic number.

It is an amenable number.

1311317315005 is a deficient number, since it is larger than the sum of its proper divisors (263695079795).

1311317315005 is a wasteful number, since it uses less digits than its factorization.

1311317315005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51504.

The product of its (nonzero) digits is 4725, while the sum is 31.

The spelling of 1311317315005 in words is "one trillion, three hundred eleven billion, three hundred seventeen million, three hundred fifteen thousand, five".