20001103002020 has 48 divisors (see below), whose sum is σ = 48018330248448. Its totient is φ = 6855280594560.

The previous prime is 20001103001981. The next prime is 20001103002031. The reversal of 20001103002020 is 2020030110002.

It is a happy number.

It is a super-2 number, since 2×20001103002020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20001103001992 and 20001103002010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22907792 + ... + 23764871.

It is an arithmetic number, because the mean of its divisors is an integer number (1000381880176).

Almost surely, 2^{20001103002020} is an apocalyptic number.

20001103002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20001103002020 is an abundant number, since it is smaller than the sum of its proper divisors (28017227246428).

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

20001103002020 is a wasteful number, since it uses less digits than its factorization.

20001103002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46675740 (or 46675738 counting only the distinct ones).

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

Adding to 20001103002020 its reverse (2020030110002), we get a palindrome (22021133112022).

The spelling of 20001103002020 in words is "twenty trillion, one billion, one hundred three million, two thousand, twenty".