20304023313 has 8 divisors (see below), whose sum is σ = 30939464128. Its totient is φ = 11602299024.

The previous prime is 20304023297. The next prime is 20304023339. The reversal of 20304023313 is 31332040302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20304023313 - 2⁴ = 20304023297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 966858253 = 20304023313 / (2 + 0 + 3 + 0 + 4 + 0 + 2 + 3 + 3 + 1 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20304023313.

It is not an unprimeable number, because it can be changed into a prime (20304022313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483429106 + ... + 483429147.

It is an arithmetic number, because the mean of its divisors is an integer number (3867433016).

Almost surely, 2^20304023313 is an apocalyptic number.

It is an amenable number.

20304023313 is a deficient number, since it is larger than the sum of its proper divisors (10635440815).

20304023313 is an equidigital number, since it uses as much as digits as its factorization.

20304023313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966858263.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20304023313 its reverse (31332040302), we get a palindrome (51636063615).

The spelling of 20304023313 in words is "twenty billion, three hundred four million, twenty-three thousand, three hundred thirteen".