20313324420 has 24 divisors (see below), whose sum is σ = 56877308544. Its totient is φ = 5416886496.

The previous prime is 20313324401. The next prime is 20313324439. The reversal of 20313324420 is 2442331302.

It is an interprime number because it is at equal distance from previous prime (20313324401) and next prime (20313324439).

It is a super-2 number, since 2×20313324420² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 169277644 + ... + 169277763.

It is an arithmetic number, because the mean of its divisors is an integer number (2369887856).

Almost surely, 2^20313324420 is an apocalyptic number.

20313324420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20313324420 is an abundant number, since it is smaller than the sum of its proper divisors (36563984124).

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

20313324420 is a wasteful number, since it uses less digits than its factorization.

20313324420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338555419 (or 338555417 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20313324420 its reverse (2442331302), we get a palindrome (22755655722).

The spelling of 20313324420 in words is "twenty billion, three hundred thirteen million, three hundred twenty-four thousand, four hundred twenty".