20004124100 has 36 divisors (see below), whose sum is σ = 43448758164. Its totient is φ = 7994311680.

The previous prime is 20004124079. The next prime is 20004124123. The reversal of 20004124100 is 142140002.

It can be written as a sum of positive squares in 6 ways, for example, as 120868036 + 19883256064 = 10994^2 + 141008^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18524 + ... + 200876.

It is an arithmetic number, because the mean of its divisors is an integer number (1206909949).

Almost surely, 2^20004124100 is an apocalyptic number.

20004124100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20004124100 is an abundant number, since it is smaller than the sum of its proper divisors (23444634064).

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

20004124100 is a wasteful number, since it uses less digits than its factorization.

20004124100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183464 (or 183457 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20004124100 its reverse (142140002), we get a palindrome (20146264102).

The spelling of 20004124100 in words is "twenty billion, four million, one hundred twenty-four thousand, one hundred".