1320434417 has 2 divisors, whose sum is σ = 1320434418. Its totient is φ = 1320434416.

The previous prime is 1320434377. The next prime is 1320434441. The reversal of 1320434417 is 7144340231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1313627536 + 6806881 = 36244^2 + 2609^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320434417 - 2⁸ = 1320434161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1320434417.

It is not a weakly prime, because it can be changed into another prime (1320434447) 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, 660217208 + 660217209.

It is an arithmetic number, because the mean of its divisors is an integer number (660217209).

Almost surely, 2^1320434417 is an apocalyptic number.

It is an amenable number.

1320434417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320434417 is an equidigital number, since it uses as much as digits as its factorization.

1320434417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 1320434417 is about 36337.7822245662. The cubic root of 1320434417 is about 1097.0816353285.

Adding to 1320434417 its reverse (7144340231), we get a palindrome (8464774648).

The spelling of 1320434417 in words is "one billion, three hundred twenty million, four hundred thirty-four thousand, four hundred seventeen".