20030012020 has 24 divisors (see below), whose sum is σ = 43419898368. Its totient is φ = 7753552800.

The previous prime is 20030011997. The next prime is 20030012053. The reversal of 20030012020 is 2021003002.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 20030011988 and 20030012006.

It is a congruent number.

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, 16152616 + ... + 16153855.

It is an arithmetic number, because the mean of its divisors is an integer number (1809162432).

Almost surely, 2^20030012020 is an apocalyptic number.

20030012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20030012020 is an abundant number, since it is smaller than the sum of its proper divisors (23389886348).

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

20030012020 is a wasteful number, since it uses less digits than its factorization.

20030012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32306511 (or 32306509 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 20030012020 its reverse (2021003002), we get a palindrome (22051015022).

The spelling of 20030012020 in words is "twenty billion, thirty million, twelve thousand, twenty".