43013434423 has 2 divisors, whose sum is σ = 43013434424. Its totient is φ = 43013434422.

The previous prime is 43013434363. The next prime is 43013434427. The reversal of 43013434423 is 32443431034.

43013434423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43013434423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43013434427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21506717211 + 21506717212.

It is an arithmetic number, because the mean of its divisors is an integer number (21506717212).

Almost surely, 2^43013434423 is an apocalyptic number.

43013434423 is a deficient number, since it is larger than the sum of its proper divisors (1).

43013434423 is an equidigital number, since it uses as much as digits as its factorization.

43013434423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 43013434423 its reverse (32443431034), we get a palindrome (75456865457).

The spelling of 43013434423 in words is "forty-three billion, thirteen million, four hundred thirty-four thousand, four hundred twenty-three".