2013131443 has 4 divisors (see below), whose sum is σ = 2021922640. Its totient is φ = 2004340248.

The previous prime is 2013131441. The next prime is 2013131459. The reversal of 2013131443 is 3441313102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3441313102 = 2 ⋅1720656551.

It is a cyclic number.

It is not a de Polignac number, because 2013131443 - 2¹ = 2013131441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2013131441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4395255 + ... + 4395712.

It is an arithmetic number, because the mean of its divisors is an integer number (505480660).

Almost surely, 2^2013131443 is an apocalyptic number.

2013131443 is a deficient number, since it is larger than the sum of its proper divisors (8791197).

2013131443 is an equidigital number, since it uses as much as digits as its factorization.

2013131443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8791196.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2013131443 is about 44867.9333488851. The cubic root of 2013131443 is about 1262.6724672140.

Adding to 2013131443 its reverse (3441313102), we get a palindrome (5454444545).

The spelling of 2013131443 in words is "two billion, thirteen million, one hundred thirty-one thousand, four hundred forty-three".