43135122011 has 2 divisors, whose sum is σ = 43135122012. Its totient is φ = 43135122010.

The previous prime is 43135121999. The next prime is 43135122049. The reversal of 43135122011 is 11022153134.

43135122011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43135122011 - 2⁶ = 43135121947 is a prime.

It is not a weakly prime, because it can be changed into another prime (43135121011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21567561005 + 21567561006.

It is an arithmetic number, because the mean of its divisors is an integer number (21567561006).

Almost surely, 2^43135122011 is an apocalyptic number.

43135122011 is a deficient number, since it is larger than the sum of its proper divisors (1).

43135122011 is an equidigital number, since it uses as much as digits as its factorization.

43135122011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 43135122011 its reverse (11022153134), we get a palindrome (54157275145).

The spelling of 43135122011 in words is "forty-three billion, one hundred thirty-five million, one hundred twenty-two thousand, eleven".