1320430513 has 2 divisors, whose sum is σ = 1320430514. Its totient is φ = 1320430512.

The previous prime is 1320430493. The next prime is 1320430567. The reversal of 1320430513 is 3150340231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 712462864 + 607967649 = 26692^2 + 24657^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320430513 - 2⁵ = 1320430481 is a prime.

It is a super-2 number, since 2×1320430513² = 3487073479322886338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1320430313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660215256 + 660215257.

It is an arithmetic number, because the mean of its divisors is an integer number (660215257).

Almost surely, 2^1320430513 is an apocalyptic number.

It is an amenable number.

1320430513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320430513 is an equidigital number, since it uses as much as digits as its factorization.

1320430513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1320430513 is about 36337.7285063335. The cubic root of 1320430513 is about 1097.0805541159.

Adding to 1320430513 its reverse (3150340231), we get a palindrome (4470770744).

The spelling of 1320430513 in words is "one billion, three hundred twenty million, four hundred thirty thousand, five hundred thirteen".