20052320313 has 4 divisors (see below), whose sum is σ = 26736427088. Its totient is φ = 13368213540.

The previous prime is 20052320293. The next prime is 20052320359. The reversal of 20052320313 is 31302325002.

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 not a de Polignac number, because 20052320313 - 2²² = 20048126009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20052320313.

It is not an unprimeable number, because it can be changed into a prime (20052321313) 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, 3342053383 + ... + 3342053388.

It is an arithmetic number, because the mean of its divisors is an integer number (6684106772).

Almost surely, 2^20052320313 is an apocalyptic number.

It is an amenable number.

20052320313 is a deficient number, since it is larger than the sum of its proper divisors (6684106775).

20052320313 is an equidigital number, since it uses as much as digits as its factorization.

20052320313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6684106774.

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 20052320313 its reverse (31302325002), we get a palindrome (51354645315).

The spelling of 20052320313 in words is "twenty billion, fifty-two million, three hundred twenty thousand, three hundred thirteen".