43112313241 has 4 divisors (see below), whose sum is σ = 43112869072. Its totient is φ = 43111757412.

The previous prime is 43112313221. The next prime is 43112313271. The reversal of 43112313241 is 14231321134.

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 a de Polignac number, because none of the positive numbers 2^k-43112313241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43112313221) 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, 138135 + ... + 324508.

It is an arithmetic number, because the mean of its divisors is an integer number (10778217268).

Almost surely, 2^43112313241 is an apocalyptic number.

It is an amenable number.

43112313241 is a deficient number, since it is larger than the sum of its proper divisors (555831).

43112313241 is an equidigital number, since it uses as much as digits as its factorization.

43112313241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555830.

The product of its digits is 1728, while the sum is 25.

Adding to 43112313241 its reverse (14231321134), we get a palindrome (57343634375).

The spelling of 43112313241 in words is "forty-three billion, one hundred twelve million, three hundred thirteen thousand, two hundred forty-one".