1320704851 has 2 divisors, whose sum is σ = 1320704852. Its totient is φ = 1320704850.

The previous prime is 1320704809. The next prime is 1320704893. The reversal of 1320704851 is 1584070231.

It is a balanced prime because it is at equal distance from previous prime (1320704809) and next prime (1320704893).

It is an emirp because it is prime and its reverse (1584070231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1320704851 - 2⁹ = 1320704339 is a prime.

It is a super-2 number, since 2×1320704851² = 3488522606909864402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1320704251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660352425 + 660352426.

It is an arithmetic number, because the mean of its divisors is an integer number (660352426).

Almost surely, 2^1320704851 is an apocalyptic number.

1320704851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320704851 is an equidigital number, since it uses as much as digits as its factorization.

1320704851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 1320704851 is about 36341.5031472282. The cubic root of 1320704851 is about 1097.1565268235.

The spelling of 1320704851 in words is "one billion, three hundred twenty million, seven hundred four thousand, eight hundred fifty-one".