1320209102879 has 2 divisors, whose sum is σ = 1320209102880. Its totient is φ = 1320209102878.

The previous prime is 1320209102857. The next prime is 1320209102893. The reversal of 1320209102879 is 9782019020231.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320209102879 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320229102879) 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, 660104551439 + 660104551440.

It is an arithmetic number, because the mean of its divisors is an integer number (660104551440).

Almost surely, 2^{1320209102879} is an apocalyptic number.

1320209102879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320209102879 is an equidigital number, since it uses as much as digits as its factorization.

1320209102879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 1320209102879 in words is "one trillion, three hundred twenty billion, two hundred nine million, one hundred two thousand, eight hundred seventy-nine".