1311640232971 has 2 divisors, whose sum is σ = 1311640232972. Its totient is φ = 1311640232970.

The previous prime is 1311640232927. The next prime is 1311640233089. The reversal of 1311640232971 is 1792320461131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1311640232971 - 2⁹ = 1311640232459 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311640233971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655820116485 + 655820116486.

It is an arithmetic number, because the mean of its divisors is an integer number (655820116486).

Almost surely, 2^{1311640232971} is an apocalyptic number.

1311640232971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311640232971 is an equidigital number, since it uses as much as digits as its factorization.

1311640232971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 1311640232971 in words is "one trillion, three hundred eleven billion, six hundred forty million, two hundred thirty-two thousand, nine hundred seventy-one".