2013040391 has 2 divisors, whose sum is σ = 2013040392. Its totient is φ = 2013040390.

The previous prime is 2013040369. The next prime is 2013040429. The reversal of 2013040391 is 1930403102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2013040391 - 2²⁶ = 1945931527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2013042391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006520195 + 1006520196.

It is an arithmetic number, because the mean of its divisors is an integer number (1006520196).

Almost surely, 2^2013040391 is an apocalyptic number.

2013040391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013040391 is an equidigital number, since it uses as much as digits as its factorization.

2013040391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2013040391 is about 44866.9186706642. The cubic root of 2013040391 is about 1262.6534304397.

Adding to 2013040391 its reverse (1930403102), we get a palindrome (3943443493).

The spelling of 2013040391 in words is "two billion, thirteen million, forty thousand, three hundred ninety-one".