20313323304 has 16 divisors (see below), whose sum is σ = 50783308320. Its totient is φ = 6771107760.

The previous prime is 20313323227. The next prime is 20313323309. The reversal of 20313323304 is 40332331302.

It is a happy number.

It is a super-2 number, since 2×20313323304² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 846388471 = 20313323304 / (2 + 0 + 3 + 1 + 3 + 3 + 2 + 3 + 3 + 0 + 4).

It is not an unprimeable number, because it can be changed into a prime (20313323309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423194212 + ... + 423194259.

It is an arithmetic number, because the mean of its divisors is an integer number (3173956770).

Almost surely, 2^20313323304 is an apocalyptic number.

20313323304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20313323304 is an abundant number, since it is smaller than the sum of its proper divisors (30469985016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20313323304 is a wasteful number, since it uses less digits than its factorization.

20313323304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846388480 (or 846388476 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 20313323304 its reverse (40332331302), we get a palindrome (60645654606).

The spelling of 20313323304 in words is "twenty billion, three hundred thirteen million, three hundred twenty-three thousand, three hundred four".