2013021191 has 2 divisors, whose sum is σ = 2013021192. Its totient is φ = 2013021190.

The previous prime is 2013021163. The next prime is 2013021229. The reversal of 2013021191 is 1911203102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2013021191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2013021121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006510595 + 1006510596.

It is an arithmetic number, because the mean of its divisors is an integer number (1006510596).

Almost surely, 2^2013021191 is an apocalyptic number.

2013021191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013021191 is an equidigital number, since it uses as much as digits as its factorization.

2013021191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 2013021191 is about 44866.7047040453. The cubic root of 2013021191 is about 1262.6494161101.

Adding to 2013021191 its reverse (1911203102), we get a palindrome (3924224293).

The spelling of 2013021191 in words is "two billion, thirteen million, twenty-one thousand, one hundred ninety-one".