42121110024 has 80 divisors (see below), whose sum is σ = 134832139200. Its totient is φ = 12034601568.

The previous prime is 42121110019. The next prime is 42121110037. The reversal of 42121110024 is 42001112124.

42121110024 is a `hidden beast` number, since 421 + 211 + 10 + 0 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 42121109979 and 42121110006.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4638444 + ... + 4647515.

It is an arithmetic number, because the mean of its divisors is an integer number (1685401740).

Almost surely, 2^42121110024 is an apocalyptic number.

It is an amenable number.

42121110024 is an abundant number, since it is smaller than the sum of its proper divisors (92711029176).

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

42121110024 is a wasteful number, since it uses less digits than its factorization.

42121110024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9285984 (or 9285971 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 42121110024 its reverse (42001112124), we get a palindrome (84122222148).

The spelling of 42121110024 in words is "forty-two billion, one hundred twenty-one million, one hundred ten thousand, twenty-four".