42043043020 has 48 divisors (see below), whose sum is σ = 98919965088. Its totient is φ = 14875176960.

The previous prime is 42043043017. The next prime is 42043043023. The reversal of 42043043020 is 2034034024.

It is an interprime number because it is at equal distance from previous prime (42043043017) and next prime (42043043023).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 42043042982 and 42043043000.

It is not an unprimeable number, because it can be changed into a prime (42043043023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2574357 + ... + 2590636.

It is an arithmetic number, because the mean of its divisors is an integer number (2060832606).

Almost surely, 2^42043043020 is an apocalyptic number.

It is an amenable number.

42043043020 is an abundant number, since it is smaller than the sum of its proper divisors (56876922068).

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

42043043020 is a wasteful number, since it uses less digits than its factorization.

42043043020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5165050 (or 5165048 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 42043043020 its reverse (2034034024), we get a palindrome (44077077044).

The spelling of 42043043020 in words is "forty-two billion, forty-three million, forty-three thousand, twenty".