43011434243 has 4 divisors (see below), whose sum is σ = 45275193960. Its totient is φ = 40747674528.

The previous prime is 43011434237. The next prime is 43011434287. The reversal of 43011434243 is 34243411034.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43011434243 - 2⁴ = 43011434227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43011434203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1131879830 + ... + 1131879867.

It is an arithmetic number, because the mean of its divisors is an integer number (11318798490).

Almost surely, 2^43011434243 is an apocalyptic number.

43011434243 is a deficient number, since it is larger than the sum of its proper divisors (2263759717).

43011434243 is a wasteful number, since it uses less digits than its factorization.

43011434243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263759716.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 43011434243 its reverse (34243411034), we get a palindrome (77254845277).

The spelling of 43011434243 in words is "forty-three billion, eleven million, four hundred thirty-four thousand, two hundred forty-three".