20030003504 has 80 divisors (see below), whose sum is σ = 45931345920. Its totient is φ = 8279281920.

The previous prime is 20030003503. The next prime is 20030003531. The reversal of 20030003504 is 40530003002.

It is not an unprimeable number, because it can be changed into a prime (20030003503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3579749 + ... + 3585339.

It is an arithmetic number, because the mean of its divisors is an integer number (574141824).

Almost surely, 2^20030003504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20030003504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22965672960).

20030003504 is an abundant number, since it is smaller than the sum of its proper divisors (25901342416).

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

20030003504 is a wasteful number, since it uses less digits than its factorization.

20030003504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6738 (or 6732 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 17.

Adding to 20030003504 its reverse (40530003002), we get a palindrome (60560006506).

The spelling of 20030003504 in words is "twenty billion, thirty million, three thousand, five hundred four".