2009201910111 has 12 divisors (see below), whose sum is σ = 3166015131240. Its totient is φ = 1217698127280.

The previous prime is 2009201910097. The next prime is 2009201910161. The reversal of 2009201910111 is 1110191029002.

It is not a de Polignac number, because 2009201910111 - 2¹³ = 2009201901919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009201910161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10147484296 + ... + 10147484493.

It is an arithmetic number, because the mean of its divisors is an integer number (263834594270).

Almost surely, 2^{2009201910111} is an apocalyptic number.

2009201910111 is a deficient number, since it is larger than the sum of its proper divisors (1156813221129).

2009201910111 is a wasteful number, since it uses less digits than its factorization.

2009201910111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20294968806 (or 20294968803 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

Adding to 2009201910111 its reverse (1110191029002), we get a palindrome (3119392939113).

The spelling of 2009201910111 in words is "two trillion, nine billion, two hundred one million, nine hundred ten thousand, one hundred eleven".