42020021433 has 16 divisors (see below), whose sum is σ = 61236988736. Its totient is φ = 25472525760.

The previous prime is 42020021401. The next prime is 42020021447. The reversal of 42020021433 is 33412002024.

It is not a de Polignac number, because 42020021433 - 2⁵ = 42020021401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42020021233) 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 15 ways as a sum of consecutive naturals, for example, 8037958 + ... + 8043183.

It is an arithmetic number, because the mean of its divisors is an integer number (3827311796).

Almost surely, 2^42020021433 is an apocalyptic number.

It is an amenable number.

42020021433 is a deficient number, since it is larger than the sum of its proper divisors (19216967303).

42020021433 is a wasteful number, since it uses less digits than its factorization.

42020021433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16081224.

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

Adding to 42020021433 its reverse (33412002024), we get a palindrome (75432023457).

The spelling of 42020021433 in words is "forty-two billion, twenty million, twenty-one thousand, four hundred thirty-three".