2012011191 has 32 divisors (see below), whose sum is σ = 3006080000. Its totient is φ = 1329999264.

The previous prime is 2012011189. The next prime is 2012011207. The reversal of 2012011191 is 1911102102.

It is a happy number.

It is not a de Polignac number, because 2012011191 - 2¹ = 2012011189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012011121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2358321 + ... + 2359173.

It is an arithmetic number, because the mean of its divisors is an integer number (93940000).

Almost surely, 2^2012011191 is an apocalyptic number.

2012011191 is a deficient number, since it is larger than the sum of its proper divisors (994068809).

2012011191 is a wasteful number, since it uses less digits than its factorization.

2012011191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500 (or 1494 counting only the distinct ones).

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

The square root of 2012011191 is about 44855.4477293450. The cubic root of 2012011191 is about 1262.4382096478.

Adding to 2012011191 its reverse (1911102102), we get a palindrome (3923113293).

The spelling of 2012011191 in words is "two billion, twelve million, eleven thousand, one hundred ninety-one".