2009811700120 has 64 divisors (see below), whose sum is σ = 5168331774720. Its totient is φ = 689045691264.

The previous prime is 2009811700103. The next prime is 2009811700139. The reversal of 2009811700120 is 210071189002.

It is a congruent number.

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, 6181539 + ... + 6498541.

It is an arithmetic number, because the mean of its divisors is an integer number (80755183980).

Almost surely, 2^{2009811700120} is an apocalyptic number.

2009811700120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2009811700120 is an abundant number, since it is smaller than the sum of its proper divisors (3158520074600).

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

2009811700120 is a wasteful number, since it uses less digits than its factorization.

2009811700120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339664 (or 339660 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 31.

Adding to 2009811700120 its reverse (210071189002), we get a palindrome (2219882889122).

The spelling of 2009811700120 in words is "two trillion, nine billion, eight hundred eleven million, seven hundred thousand, one hundred twenty".