1320216513 has 32 divisors (see below), whose sum is σ = 2196667392. Its totient is φ = 685195200.

The previous prime is 1320216493. The next prime is 1320216563. The reversal of 1320216513 is 3156120231.

It is not a de Polignac number, because 1320216513 - 2¹² = 1320212417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1320216563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 351795 + ... + 355527.

It is an arithmetic number, because the mean of its divisors is an integer number (68645856).

Almost surely, 2^1320216513 is an apocalyptic number.

It is an amenable number.

1320216513 is a deficient number, since it is larger than the sum of its proper divisors (876450879).

1320216513 is a wasteful number, since it uses less digits than its factorization.

1320216513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5285.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1320216513 is about 36334.7837890911. The cubic root of 1320216513 is about 1097.0212835673.

Adding to 1320216513 its reverse (3156120231), we get a palindrome (4476336744).

The spelling of 1320216513 in words is "one billion, three hundred twenty million, two hundred sixteen thousand, five hundred thirteen".