20124322020 has 336 divisors, whose sum is σ = 69608185920. Its totient is φ = 4844448000.

The previous prime is 20124322019. The next prime is 20124322021. The reversal of 20124322020 is 2022342102.

20124322020 is a `hidden beast` number, since 20 + 12 + 432 + 202 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (20124322019) and next prime (20124322021).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20124321984 and 20124322002.

It is not an unprimeable number, because it can be changed into a prime (20124322021) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 28707670 + ... + 28708370.

It is an arithmetic number, because the mean of its divisors is an integer number (207167220).

Almost surely, 2^20124322020 is an apocalyptic number.

20124322020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20124322020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34804092960).

20124322020 is an abundant number, since it is smaller than the sum of its proper divisors (49483863900).

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

20124322020 is a wasteful number, since it uses less digits than its factorization.

20124322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20124322020 its reverse (2022342102), we get a palindrome (22146664122).

The spelling of 20124322020 in words is "twenty billion, one hundred twenty-four million, three hundred twenty-two thousand, twenty".