2010120191 has 4 divisors (see below), whose sum is σ = 2010412800. Its totient is φ = 2009827584.

The previous prime is 2010120179. The next prime is 2010120209. The reversal of 2010120191 is 1910210102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2010120191 - 2²⁶ = 1943011327 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2010120491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135746 + ... + 149823.

It is an arithmetic number, because the mean of its divisors is an integer number (502603200).

Almost surely, 2^2010120191 is an apocalyptic number.

2010120191 is a deficient number, since it is larger than the sum of its proper divisors (292609).

2010120191 is an equidigital number, since it uses as much as digits as its factorization.

2010120191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292608.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 2010120191 is about 44834.3639522186. The cubic root of 2010120191 is about 1262.0425824677.

Adding to 2010120191 its reverse (1910210102), we get a palindrome (3920330293).

The spelling of 2010120191 in words is "two billion, ten million, one hundred twenty thousand, one hundred ninety-one".