43420021130041 has 4 divisors (see below), whose sum is σ = 43420098714192. Its totient is φ = 43419943545892.

The previous prime is 43420021129951. The next prime is 43420021130141. The reversal of 43420021130041 is 14003112002434.

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 43420021130041 - 2²¹ = 43420019032889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43420021129988 and 43420021130015.

It is not an unprimeable number, because it can be changed into a prime (43420021130141) 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, 37946455 + ... + 39073948.

It is an arithmetic number, because the mean of its divisors is an integer number (10855024678548).

Almost surely, 2^{43420021130041} is an apocalyptic number.

It is an amenable number.

43420021130041 is a deficient number, since it is larger than the sum of its proper divisors (77584151).

43420021130041 is an equidigital number, since it uses as much as digits as its factorization.

43420021130041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77584150.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 43420021130041 its reverse (14003112002434), we get a palindrome (57423133132475).

The spelling of 43420021130041 in words is "forty-three trillion, four hundred twenty billion, twenty-one million, one hundred thirty thousand, forty-one".