1330120217 has 2 divisors, whose sum is σ = 1330120218. Its totient is φ = 1330120216.

The previous prime is 1330120201. The next prime is 1330120241. The reversal of 1330120217 is 7120210331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 999571456 + 330548761 = 31616^2 + 18181^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330120217 - 2⁴ = 1330120201 is a prime.

It is not a weakly prime, because it can be changed into another prime (1330120117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665060108 + 665060109.

It is an arithmetic number, because the mean of its divisors is an integer number (665060109).

Almost surely, 2^1330120217 is an apocalyptic number.

It is an amenable number.

1330120217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330120217 is an equidigital number, since it uses as much as digits as its factorization.

1330120217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 1330120217 is about 36470.8132209854. The cubic root of 1330120217 is about 1099.7575821171.

Adding to 1330120217 its reverse (7120210331), we get a palindrome (8450330548).

The spelling of 1330120217 in words is "one billion, three hundred thirty million, one hundred twenty thousand, two hundred seventeen".