20330013313 has 4 divisors (see below), whose sum is σ = 20390340100. Its totient is φ = 20269686528.

The previous prime is 20330013299. The next prime is 20330013343. The reversal of 20330013313 is 31331003302.

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 6637035024 + 13692978289 = 81468^2 + 117017^2 .

It is a cyclic number.

It is not a de Polignac number, because 20330013313 - 2²⁵ = 20296458881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20330013343) 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, 30162888 + ... + 30163561.

It is an arithmetic number, because the mean of its divisors is an integer number (5097585025).

Almost surely, 2^20330013313 is an apocalyptic number.

It is an amenable number.

20330013313 is a deficient number, since it is larger than the sum of its proper divisors (60326787).

20330013313 is an equidigital number, since it uses as much as digits as its factorization.

20330013313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60326786.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 20330013313 its reverse (31331003302), we get a palindrome (51661016615).

The spelling of 20330013313 in words is "twenty billion, three hundred thirty million, thirteen thousand, three hundred thirteen".