1320352013 has 4 divisors (see below), whose sum is σ = 1330431168. Its totient is φ = 1310272860.

The previous prime is 1320351983. The next prime is 1320352021. The reversal of 1320352013 is 3102530231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3102530231 = 181 ⋅17141051.

It is a cyclic number.

It is not a de Polignac number, because 1320352013 - 2²² = 1316157709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320352213) 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 in 3 ways as a sum of consecutive naturals, for example, 5039381 + ... + 5039642.

It is an arithmetic number, because the mean of its divisors is an integer number (332607792).

Almost surely, 2^1320352013 is an apocalyptic number.

It is an amenable number.

1320352013 is a deficient number, since it is larger than the sum of its proper divisors (10079155).

1320352013 is a wasteful number, since it uses less digits than its factorization.

1320352013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10079154.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 1320352013 is about 36336.6483457129. The cubic root of 1320352013 is about 1097.0588130930.

Adding to 1320352013 its reverse (3102530231), we get a palindrome (4422882244).

The spelling of 1320352013 in words is "one billion, three hundred twenty million, three hundred fifty-two thousand, thirteen".