20004024012 has 72 divisors (see below), whose sum is σ = 54324705456. Its totient is φ = 5712481152.

The previous prime is 20004023969. The next prime is 20004024031. The reversal of 20004024012 is 21042040002.

It is a super-2 number, since 2×20004024012² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20004023982 and 20004024000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1293558 + ... + 1308930.

It is an arithmetic number, because the mean of its divisors is an integer number (754509798).

Almost surely, 2^20004024012 is an apocalyptic number.

It is an amenable number.

20004024012 is an abundant number, since it is smaller than the sum of its proper divisors (34320681444).

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

20004024012 is a wasteful number, since it uses less digits than its factorization.

20004024012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17607 (or 17598 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20004024012 its reverse (21042040002), we get a palindrome (41046064014).

The spelling of 20004024012 in words is "twenty billion, four million, twenty-four thousand, twelve".