43234043011 has 2 divisors, whose sum is σ = 43234043012. Its totient is φ = 43234043010.

The previous prime is 43234043009. The next prime is 43234043071. The reversal of 43234043011 is 11034043234.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43234043011 - 2¹ = 43234043009 is a prime.

It is a super-2 number, since 2×43234043011² (a number of 22 digits) contains 22 as substring.

Together with 43234043009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (43234043071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21617021505 + 21617021506.

It is an arithmetic number, because the mean of its divisors is an integer number (21617021506).

Almost surely, 2^43234043011 is an apocalyptic number.

43234043011 is a deficient number, since it is larger than the sum of its proper divisors (1).

43234043011 is an equidigital number, since it uses as much as digits as its factorization.

43234043011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 43234043011 its reverse (11034043234), we get a palindrome (54268086245).

The spelling of 43234043011 in words is "forty-three billion, two hundred thirty-four million, forty-three thousand, eleven".