42002311021 has 8 divisors (see below), whose sum is σ = 45824601888. Its totient is φ = 38180670000.

The previous prime is 42002311019. The next prime is 42002311049. The reversal of 42002311021 is 12011320024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42002311021 - 2¹ = 42002311019 is a prime.

It is a super-2 number, since 2×42002311021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42002310986 and 42002311004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42002311121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22030 + ... + 290671.

It is an arithmetic number, because the mean of its divisors is an integer number (5728075236).

Almost surely, 2^42002311021 is an apocalyptic number.

It is an amenable number.

42002311021 is a deficient number, since it is larger than the sum of its proper divisors (3822290867).

42002311021 is a wasteful number, since it uses less digits than its factorization.

42002311021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324923.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 42002311021 its reverse (12011320024), we get a palindrome (54013631045).

The spelling of 42002311021 in words is "forty-two billion, two million, three hundred eleven thousand, twenty-one".