20012404124 has 12 divisors (see below), whose sum is σ = 35024635464. Its totient is φ = 10005365424.

The previous prime is 20012404099. The next prime is 20012404127. The reversal of 20012404124 is 42140421002.

It is a junction number, because it is equal to n+sod(n) for n = 20012404096 and 20012404105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012404127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153707 + ... + 252290.

It is an arithmetic number, because the mean of its divisors is an integer number (2918719622).

Almost surely, 2^20012404124 is an apocalyptic number.

It is an amenable number.

20012404124 is a deficient number, since it is larger than the sum of its proper divisors (15012231340).

20012404124 is a wasteful number, since it uses less digits than its factorization.

20012404124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418324 (or 418322 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20012404124 its reverse (42140421002), we get a palindrome (62152825126).

The spelling of 20012404124 in words is "twenty billion, twelve million, four hundred four thousand, one hundred twenty-four".