42343002021 has 32 divisors (see below), whose sum is σ = 58901340160. Its totient is φ = 27026654400.

The previous prime is 42343002017. The next prime is 42343002029. The reversal of 42343002021 is 12020034324.

It is not a de Polignac number, because 42343002021 - 2² = 42343002017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42343002029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16675770 + ... + 16678308.

It is an arithmetic number, because the mean of its divisors is an integer number (1840666880).

Almost surely, 2^42343002021 is an apocalyptic number.

It is an amenable number.

42343002021 is a deficient number, since it is larger than the sum of its proper divisors (16558338139).

42343002021 is a wasteful number, since it uses less digits than its factorization.

42343002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4417.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 42343002021 its reverse (12020034324), we get a palindrome (54363036345).

The spelling of 42343002021 in words is "forty-two billion, three hundred forty-three million, two thousand, twenty-one".