43542143241 has 4 divisors (see below), whose sum is σ = 58056190992. Its totient is φ = 29028095492.

The previous prime is 43542143237. The next prime is 43542143251. The reversal of 43542143241 is 14234124534.

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 43542143241 - 2² = 43542143237 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43542143221) 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, 7257023871 + ... + 7257023876.

It is an arithmetic number, because the mean of its divisors is an integer number (14514047748).

Almost surely, 2^43542143241 is an apocalyptic number.

It is an amenable number.

43542143241 is a deficient number, since it is larger than the sum of its proper divisors (14514047751).

43542143241 is a wasteful number, since it uses less digits than its factorization.

43542143241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14514047750.

The product of its digits is 46080, while the sum is 33.

Adding to 43542143241 its reverse (14234124534), we get a palindrome (57776267775).

The spelling of 43542143241 in words is "forty-three billion, five hundred forty-two million, one hundred forty-three thousand, two hundred forty-one".