20003310313 has 4 divisors (see below), whose sum is σ = 22860926080. Its totient is φ = 17145694548.

The previous prime is 20003310293. The next prime is 20003310317. The reversal of 20003310313 is 31301330002.

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 20003310313 - 2²⁹ = 19466439401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20003310317) 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, 1428807873 + ... + 1428807886.

It is an arithmetic number, because the mean of its divisors is an integer number (5715231520).

Almost surely, 2^20003310313 is an apocalyptic number.

It is an amenable number.

20003310313 is a deficient number, since it is larger than the sum of its proper divisors (2857615767).

20003310313 is an equidigital number, since it uses as much as digits as its factorization.

20003310313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857615766.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 20003310313 its reverse (31301330002), we get a palindrome (51304640315).

The spelling of 20003310313 in words is "twenty billion, three million, three hundred ten thousand, three hundred thirteen".