1320717413 has 2 divisors, whose sum is σ = 1320717414. Its totient is φ = 1320717412.

The previous prime is 1320717407. The next prime is 1320717457. The reversal of 1320717413 is 3147170231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 810996484 + 509720929 = 28478^2 + 22577^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320717413 - 2¹⁰ = 1320716389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320714413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660358706 + 660358707.

It is an arithmetic number, because the mean of its divisors is an integer number (660358707).

Almost surely, 2^1320717413 is an apocalyptic number.

It is an amenable number.

1320717413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320717413 is an equidigital number, since it uses as much as digits as its factorization.

1320717413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 1320717413 is about 36341.6759795142. The cubic root of 1320717413 is about 1097.1600053793.

Adding to 1320717413 its reverse (3147170231), we get a palindrome (4467887644).

The spelling of 1320717413 in words is "one billion, three hundred twenty million, seven hundred seventeen thousand, four hundred thirteen".