2113213043 has 2 divisors, whose sum is σ = 2113213044. Its totient is φ = 2113213042.

The previous prime is 2113213009. The next prime is 2113213049. The reversal of 2113213043 is 3403123112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2113213043 is a prime.

It is not a weakly prime, because it can be changed into another prime (2113213049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056606521 + 1056606522.

It is an arithmetic number, because the mean of its divisors is an integer number (1056606522).

Almost surely, 2^2113213043 is an apocalyptic number.

2113213043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113213043 is an equidigital number, since it uses as much as digits as its factorization.

2113213043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2113213043 is about 45969.6970079203. The cubic root of 2113213043 is about 1283.2593211641.

Adding to 2113213043 its reverse (3403123112), we get a palindrome (5516336155).

The spelling of 2113213043 in words is "two billion, one hundred thirteen million, two hundred thirteen thousand, forty-three".