20003203120 has 40 divisors (see below), whose sum is σ = 46516192416. Its totient is φ = 7999776768.

The previous prime is 20003203057. The next prime is 20003203139. The reversal of 20003203120 is 2130230002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 20003203120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468589 + ... + 509491.

Almost surely, 2^20003203120 is an apocalyptic number.

20003203120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20003203120 is an abundant number, since it is smaller than the sum of its proper divisors (26512989296).

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

20003203120 is a wasteful number, since it uses less digits than its factorization.

20003203120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47029 (or 47023 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20003203120 its reverse (2130230002), we get a palindrome (22133433122).

The spelling of 20003203120 in words is "twenty billion, three million, two hundred three thousand, one hundred twenty".