20003403020 has 24 divisors (see below), whose sum is σ = 42091350000. Its totient is φ = 7985322432.

The previous prime is 20003403019. The next prime is 20003403089. The reversal of 20003403020 is 2030430002.

It is a super-2 number, since 2×20003403020² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20003402986 and 20003403004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 992195 + ... + 1012154.

It is an arithmetic number, because the mean of its divisors is an integer number (1753806250).

Almost surely, 2^20003403020 is an apocalyptic number.

20003403020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20003403020 is an abundant number, since it is smaller than the sum of its proper divisors (22087946980).

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

20003403020 is a wasteful number, since it uses less digits than its factorization.

20003403020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004857 (or 2004855 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

Adding to 20003403020 its reverse (2030430002), we get a palindrome (22033833022).

The spelling of 20003403020 in words is "twenty billion, three million, four hundred three thousand, twenty".