1328142286931 has 2 divisors, whose sum is σ = 1328142286932. Its totient is φ = 1328142286930.

The previous prime is 1328142286873. The next prime is 1328142286963. The reversal of 1328142286931 is 1396822418231.

It is a strong prime.

It is an emirp because it is prime and its reverse (1396822418231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1328142286931 - 2³⁰ = 1327068545107 is a prime.

It is a super-2 number, since 2×1328142286931² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1328142286931.

It is not a weakly prime, because it can be changed into another prime (1328142280931) 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, 664071143465 + 664071143466.

It is an arithmetic number, because the mean of its divisors is an integer number (664071143466).

Almost surely, 2^{1328142286931} is an apocalyptic number.

1328142286931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328142286931 is an equidigital number, since it uses as much as digits as its factorization.

1328142286931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 995328, while the sum is 50.

The spelling of 1328142286931 in words is "one trillion, three hundred twenty-eight billion, one hundred forty-two million, two hundred eighty-six thousand, nine hundred thirty-one".