42003043321020 has 96 divisors (see below), whose sum is σ = 126134263342080. Its totient is φ = 10411082023680.

The previous prime is 42003043320943. The next prime is 42003043321027. The reversal of 42003043321020 is 2012334030024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42003043321027) 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, 347531796 + ... + 347652635.

It is an arithmetic number, because the mean of its divisors is an integer number (1313898576480).

Almost surely, 2^{42003043321020} is an apocalyptic number.

It is an amenable number.

42003043321020 is an abundant number, since it is smaller than the sum of its proper divisors (84131220021060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42003043321020 is a wasteful number, since it uses less digits than its factorization.

42003043321020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695184515 (or 695184513 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 42003043321020 its reverse (2012334030024), we get a palindrome (44015377351044).

The spelling of 42003043321020 in words is "forty-two trillion, three billion, forty-three million, three hundred twenty-one thousand, twenty".