20124454020 has 96 divisors (see below), whose sum is σ = 62079889536. Its totient is φ = 4830336000.

The previous prime is 20124454013. The next prime is 20124454027. The reversal of 20124454020 is 2045442102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20124454013) and next prime (20124454027).

It is not an unprimeable number, because it can be changed into a prime (20124454027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84289 + ... + 217608.

It is an arithmetic number, because the mean of its divisors is an integer number (646665516).

Almost surely, 2^20124454020 is an apocalyptic number.

20124454020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20124454020 is an abundant number, since it is smaller than the sum of its proper divisors (41955435516).

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

20124454020 is a wasteful number, since it uses less digits than its factorization.

20124454020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302021 (or 302019 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 20124454020 its reverse (2045442102), we get a palindrome (22169896122).

The spelling of 20124454020 in words is "twenty billion, one hundred twenty-four million, four hundred fifty-four thousand, twenty".