1313435397871 has 2 divisors, whose sum is σ = 1313435397872. Its totient is φ = 1313435397870.

The previous prime is 1313435397847. The next prime is 1313435397913. The reversal of 1313435397871 is 1787935343131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1313435397871 - 2¹¹ = 1313435395823 is a prime.

It is a super-2 number, since 2×1313435397871² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313435398871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656717698935 + 656717698936.

It is an arithmetic number, because the mean of its divisors is an integer number (656717698936).

Almost surely, 2^{1313435397871} is an apocalyptic number.

1313435397871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313435397871 is an equidigital number, since it uses as much as digits as its factorization.

1313435397871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5715360, while the sum is 55.

The spelling of 1313435397871 in words is "one trillion, three hundred thirteen billion, four hundred thirty-five million, three hundred ninety-seven thousand, eight hundred seventy-one".