20313121132020 has 24 divisors (see below), whose sum is σ = 56876739169824. Its totient is φ = 5416832301856.

The previous prime is 20313121131997. The next prime is 20313121132021. The reversal of 20313121132020 is 2023112131302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313121132021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169276009374 + ... + 169276009493.

It is an arithmetic number, because the mean of its divisors is an integer number (2369864132076).

Almost surely, 2^{20313121132020} is an apocalyptic number.

20313121132020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20313121132020 is an abundant number, since it is smaller than the sum of its proper divisors (36563618037804).

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

20313121132020 is a wasteful number, since it uses less digits than its factorization.

20313121132020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338552018879 (or 338552018877 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20313121132020 its reverse (2023112131302), we get a palindrome (22336233263322).

The spelling of 20313121132020 in words is "twenty trillion, three hundred thirteen billion, one hundred twenty-one million, one hundred thirty-two thousand, twenty".