20313000020 has 48 divisors (see below), whose sum is σ = 43200416448. Its totient is φ = 8021882880.

The previous prime is 20313000017. The next prime is 20313000031. The reversal of 20313000020 is 2000031302.

It is a junction number, because it is equal to n+sod(n) for n = 20312999965 and 20313000010.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3202292 + ... + 3208628.

It is an arithmetic number, because the mean of its divisors is an integer number (900008676).

Almost surely, 2^20313000020 is an apocalyptic number.

20313000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20313000020 is an abundant number, since it is smaller than the sum of its proper divisors (22887416428).

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

20313000020 is a wasteful number, since it uses less digits than its factorization.

20313000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8360 (or 8358 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 20313000020 its reverse (2000031302), we get a palindrome (22313031322).

The spelling of 20313000020 in words is "twenty billion, three hundred thirteen million, twenty", and thus it is an aban number.