42044021120 has 32 divisors (see below), whose sum is σ = 100511489520. Its totient is φ = 16817608192.

The previous prime is 42044021113. The next prime is 42044021143. The reversal of 42044021120 is 2112044024.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 42044021092 and 42044021101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32846252 + ... + 32847531.

Almost surely, 2^42044021120 is an apocalyptic number.

42044021120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42044021120 is an abundant number, since it is smaller than the sum of its proper divisors (58467468400).

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

42044021120 is an equidigital number, since it uses as much as digits as its factorization.

42044021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65693802 (or 65693790 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 42044021120 its reverse (2112044024), we get a palindrome (44156065144).

The spelling of 42044021120 in words is "forty-two billion, forty-four million, twenty-one thousand, one hundred twenty".