2028320213 has 4 divisors (see below), whose sum is σ = 2030418720. Its totient is φ = 2026221708.

The previous prime is 2028320197. The next prime is 2028320237. The reversal of 2028320213 is 3120238202.

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.

It is a cyclic number.

It is not a de Polignac number, because 2028320213 - 2⁴ = 2028320197 is a prime.

It is a super-2 number, since 2×2028320213² = 8228165772928730738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028320293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047803 + ... + 1049736.

It is an arithmetic number, because the mean of its divisors is an integer number (507604680).

Almost surely, 2^2028320213 is an apocalyptic number.

It is an amenable number.

2028320213 is a deficient number, since it is larger than the sum of its proper divisors (2098507).

2028320213 is an equidigital number, since it uses as much as digits as its factorization.

2028320213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098506.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2028320213 is about 45036.8761461094. The cubic root of 2028320213 is about 1265.8400712818.

Adding to 2028320213 its reverse (3120238202), we get a palindrome (5148558415).

The spelling of 2028320213 in words is "two billion, twenty-eight million, three hundred twenty thousand, two hundred thirteen".