1320117259 has 2 divisors, whose sum is σ = 1320117260. Its totient is φ = 1320117258.

The previous prime is 1320117257. The next prime is 1320117317. The reversal of 1320117259 is 9527110231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1320117259 - 2¹ = 1320117257 is a prime.

Together with 1320117257, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1320117259.

It is not a weakly prime, because it can be changed into another prime (1320117257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660058629 + 660058630.

It is an arithmetic number, because the mean of its divisors is an integer number (660058630).

Almost surely, 2^1320117259 is an apocalyptic number.

1320117259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320117259 is an equidigital number, since it uses as much as digits as its factorization.

1320117259 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 31.

The square root of 1320117259 is about 36333.4179372104. The cubic root of 1320117259 is about 1096.9937914910.

The spelling of 1320117259 in words is "one billion, three hundred twenty million, one hundred seventeen thousand, two hundred fifty-nine".