202011111009 has 96 divisors (see below), whose sum is σ = 319110405120. Its totient is φ = 122796850176.

The previous prime is 202011110999. The next prime is 202011111023. The reversal of 202011111009 is 900111110202.

It is a happy number.

202011111009 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 202011111009 - 2⁸ = 202011110753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202011110982 and 202011111000.

It is not an unprimeable number, because it can be changed into a prime (202011111059) 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 95 ways as a sum of consecutive naturals, for example, 82892139 + ... + 82894575.

It is an arithmetic number, because the mean of its divisors is an integer number (3324066720).

Almost surely, 2^202011111009 is an apocalyptic number.

It is an amenable number.

202011111009 is a deficient number, since it is larger than the sum of its proper divisors (117099294111).

202011111009 is a wasteful number, since it uses less digits than its factorization.

202011111009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2719 (or 2716 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

It can be divided in two parts, 2020111 and 11009, that added together give a triangular number (2031120 = T₂₀₁₅).

The spelling of 202011111009 in words is "two hundred two billion, eleven million, one hundred eleven thousand, nine".