20031102020 has 24 divisors (see below), whose sum is σ = 42960322944. Its totient is φ = 7841962976.

The previous prime is 20031102001. The next prime is 20031102029. The reversal of 20031102020 is 2020113002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20031101992 and 20031102010.

It is not an unprimeable number, because it can be changed into a prime (20031102029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10653902 + ... + 10655781.

It is an arithmetic number, because the mean of its divisors is an integer number (1790013456).

Almost surely, 2^20031102020 is an apocalyptic number.

20031102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20031102020 is an abundant number, since it is smaller than the sum of its proper divisors (22929220924).

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

20031102020 is a wasteful number, since it uses less digits than its factorization.

20031102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21309739 (or 21309737 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20031102020 its reverse (2020113002), we get a palindrome (22051215022).

The spelling of 20031102020 in words is "twenty billion, thirty-one million, one hundred two thousand, twenty".