320200513 has 4 divisors (see below), whose sum is σ = 331241940. Its totient is φ = 309159088.

The previous prime is 320200511. The next prime is 320200547. The reversal of 320200513 is 315002023.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 150601984 + 169598529 = 12272^2 + 13023^2 .

It is a cyclic number.

It is not a de Polignac number, because 320200513 - 2¹ = 320200511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320200511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5520670 + ... + 5520727.

It is an arithmetic number, because the mean of its divisors is an integer number (82810485).

Almost surely, 2^320200513 is an apocalyptic number.

It is an amenable number.

320200513 is a deficient number, since it is larger than the sum of its proper divisors (11041427).

320200513 is a wasteful number, since it uses less digits than its factorization.

320200513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11041426.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 320200513 is about 17894.1474510523. The cubic root of 320200513 is about 684.1332123444.

Adding to 320200513 its reverse (315002023), we get a palindrome (635202536).

The spelling of 320200513 in words is "three hundred twenty million, two hundred thousand, five hundred thirteen".