42003133021 has 8 divisors (see below), whose sum is σ = 43026758720. Its totient is φ = 40981635072.

The previous prime is 42003133001. The next prime is 42003133093. The reversal of 42003133021 is 12033130024.

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

It is a cyclic number.

It is not a de Polignac number, because 42003133021 - 2¹⁷ = 42003001949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42003133021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42003133001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491940 + ... + 570973.

It is an arithmetic number, because the mean of its divisors is an integer number (5378344840).

Almost surely, 2^42003133021 is an apocalyptic number.

It is an amenable number.

42003133021 is a deficient number, since it is larger than the sum of its proper divisors (1023625699).

42003133021 is a wasteful number, since it uses less digits than its factorization.

42003133021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063875.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 42003133021 its reverse (12033130024), we get a palindrome (54036263045).

The spelling of 42003133021 in words is "forty-two billion, three million, one hundred thirty-three thousand, twenty-one".