42333342021 has 12 divisors (see below), whose sum is σ = 61152739648. Its totient is φ = 28220114664.

The previous prime is 42333342019. The next prime is 42333342043. The reversal of 42333342021 is 12024333324.

42333342021 is a `hidden beast` number, since 4 + 233 + 3 + 3 + 420 + 2 + 1 = 666.

It is not a de Polignac number, because 42333342021 - 2¹ = 42333342019 is a prime.

It is a super-2 number, since 2×42333342021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42333342071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44035 + ... + 294288.

Almost surely, 2^42333342021 is an apocalyptic number.

It is an amenable number.

42333342021 is a deficient number, since it is larger than the sum of its proper divisors (18819397627).

42333342021 is a wasteful number, since it uses less digits than its factorization.

42333342021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352232 (or 352229 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 42333342021 its reverse (12024333324), we get a palindrome (54357675345).

The spelling of 42333342021 in words is "forty-two billion, three hundred thirty-three million, three hundred forty-two thousand, twenty-one".