202020011109 has 24 divisors (see below), whose sum is σ = 336610123200. Its totient is φ = 114361123968.

The previous prime is 202020011101. The next prime is 202020011113. The reversal of 202020011109 is 901110020202.

202020011109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202020011109 - 2³ = 202020011101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202020011091 and 202020011100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202020011101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14977684 + ... + 14991165.

It is an arithmetic number, because the mean of its divisors is an integer number (14025421800).

Almost surely, 2^202020011109 is an apocalyptic number.

It is an amenable number.

202020011109 is a deficient number, since it is larger than the sum of its proper divisors (134590112091).

202020011109 is a wasteful number, since it uses less digits than its factorization.

202020011109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29968969 (or 29968966 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 202020011109 in words is "two hundred two billion, twenty million, eleven thousand, one hundred nine".