20213320313 has 4 divisors (see below), whose sum is σ = 20215552848. Its totient is φ = 20211087780.

The previous prime is 20213320271. The next prime is 20213320319. The reversal of 20213320313 is 31302331202.

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 20213320313 - 2¹⁶ = 20213254777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20213320319) 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, 1102631 + ... + 1120812.

It is an arithmetic number, because the mean of its divisors is an integer number (5053888212).

Almost surely, 2^20213320313 is an apocalyptic number.

It is an amenable number.

20213320313 is a deficient number, since it is larger than the sum of its proper divisors (2232535).

20213320313 is an equidigital number, since it uses as much as digits as its factorization.

20213320313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232534.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20213320313 its reverse (31302331202), we get a palindrome (51515651515).

The spelling of 20213320313 in words is "twenty billion, two hundred thirteen million, three hundred twenty thousand, three hundred thirteen".