43034243645311 has 4 divisors (see below), whose sum is σ = 45565669742112. Its totient is φ = 40502817548512.

The previous prime is 43034243645231. The next prime is 43034243645357. The reversal of 43034243645311 is 11354634243034.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43034243645311 is a prime.

It is a super-3 number, since 3×43034243645311³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43034243643311) 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, 1265713048375 + ... + 1265713048408.

It is an arithmetic number, because the mean of its divisors is an integer number (11391417435528).

Almost surely, 2^{43034243645311} is an apocalyptic number.

43034243645311 is a deficient number, since it is larger than the sum of its proper divisors (2531426096801).

43034243645311 is a wasteful number, since it uses less digits than its factorization.

43034243645311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531426096800.

The product of its (nonzero) digits is 1244160, while the sum is 43.

Adding to 43034243645311 its reverse (11354634243034), we get a palindrome (54388877888345).

The spelling of 43034243645311 in words is "forty-three trillion, thirty-four billion, two hundred forty-three million, six hundred forty-five thousand, three hundred eleven".