1328122871 has 2 divisors, whose sum is σ = 1328122872. Its totient is φ = 1328122870.

The previous prime is 1328122849. The next prime is 1328122907. The reversal of 1328122871 is 1782218231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1328122871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1328122571) 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, 664061435 + 664061436.

It is an arithmetic number, because the mean of its divisors is an integer number (664061436).

Almost surely, 2^1328122871 is an apocalyptic number.

1328122871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328122871 is an equidigital number, since it uses as much as digits as its factorization.

1328122871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 35.

The square root of 1328122871 is about 36443.4201331324. The cubic root of 1328122871 is about 1099.2068306918.

The spelling of 1328122871 in words is "one billion, three hundred twenty-eight million, one hundred twenty-two thousand, eight hundred seventy-one".