42873843121 has 4 divisors (see below), whose sum is σ = 45130361200. Its totient is φ = 40617325044.

The previous prime is 42873843119. The next prime is 42873843139. The reversal of 42873843121 is 12134837824.

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 42873843121 - 2¹ = 42873843119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42873843191) 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, 1128259011 + ... + 1128259048.

It is an arithmetic number, because the mean of its divisors is an integer number (11282590300).

Almost surely, 2^42873843121 is an apocalyptic number.

It is an amenable number.

42873843121 is a deficient number, since it is larger than the sum of its proper divisors (2256518079).

42873843121 is a wasteful number, since it uses less digits than its factorization.

42873843121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256518078.

The product of its digits is 258048, while the sum is 43.

The spelling of 42873843121 in words is "forty-two billion, eight hundred seventy-three million, eight hundred forty-three thousand, one hundred twenty-one".