42304304021 has 16 divisors (see below), whose sum is σ = 48568633344. Its totient is φ = 36095402544.

The previous prime is 42304304017. The next prime is 42304304047. The reversal of 42304304021 is 12040340324.

42304304021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42304304021 - 2² = 42304304017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42304304321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2619056 + ... + 2635158.

It is an arithmetic number, because the mean of its divisors is an integer number (3035539584).

Almost surely, 2^42304304021 is an apocalyptic number.

It is an amenable number.

42304304021 is a deficient number, since it is larger than the sum of its proper divisors (6264329323).

42304304021 is a wasteful number, since it uses less digits than its factorization.

42304304021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17800.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 42304304021 its reverse (12040340324), we get a palindrome (54344644345).

The spelling of 42304304021 in words is "forty-two billion, three hundred four million, three hundred four thousand, twenty-one".