43042140313 has 4 divisors (see below), whose sum is σ = 43085927808. Its totient is φ = 42998352820.

The previous prime is 43042140311. The next prime is 43042140329. The reversal of 43042140313 is 31304124034.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43042140313 - 2¹ = 43042140311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43042140311) 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, 21892273 + ... + 21894238.

It is an arithmetic number, because the mean of its divisors is an integer number (10771481952).

Almost surely, 2^43042140313 is an apocalyptic number.

It is an amenable number.

43042140313 is a deficient number, since it is larger than the sum of its proper divisors (43787495).

43042140313 is an equidigital number, since it uses as much as digits as its factorization.

43042140313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43787494.

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

Adding to 43042140313 its reverse (31304124034), we get a palindrome (74346264347).

The spelling of 43042140313 in words is "forty-three billion, forty-two million, one hundred forty thousand, three hundred thirteen".