43013423045243 has 24 divisors (see below), whose sum is σ = 51693096069504. Its totient is φ = 35649627552000.

The previous prime is 43013423045231. The next prime is 43013423045297. The reversal of 43013423045243 is 34254032431034.

It is not a de Polignac number, because 43013423045243 - 2²⁰ = 43013421996667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43013423045197 and 43013423045206.

It is not an unprimeable number, because it can be changed into a prime (43013423041243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9964580 + ... + 13613217.

It is an arithmetic number, because the mean of its divisors is an integer number (2153879002896).

Almost surely, 2^{43013423045243} is an apocalyptic number.

43013423045243 is a deficient number, since it is larger than the sum of its proper divisors (8679673024261).

43013423045243 is a wasteful number, since it uses less digits than its factorization.

43013423045243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23579043 (or 23579036 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 38.

Adding to 43013423045243 its reverse (34254032431034), we get a palindrome (77267455476277).

The spelling of 43013423045243 in words is "forty-three trillion, thirteen billion, four hundred twenty-three million, forty-five thousand, two hundred forty-three".