1320014287 has 2 divisors, whose sum is σ = 1320014288. Its totient is φ = 1320014286.

The previous prime is 1320014279. The next prime is 1320014327. The reversal of 1320014287 is 7824100231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1320014287 - 2³ = 1320014279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320014687) 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, 660007143 + 660007144.

It is an arithmetic number, because the mean of its divisors is an integer number (660007144).

Almost surely, 2^1320014287 is an apocalyptic number.

1320014287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320014287 is an equidigital number, since it uses as much as digits as its factorization.

1320014287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1320014287 is about 36332.0008670043. Note that the first 3 decimals coincide. The cubic root of 1320014287 is about 1096.9652681203.

The spelling of 1320014287 in words is "one billion, three hundred twenty million, fourteen thousand, two hundred eighty-seven".