42531125124 has 24 divisors (see below), whose sum is σ = 99848126560. Its totient is φ = 14090065344.

The previous prime is 42531125089. The next prime is 42531125173. The reversal of 42531125124 is 42152113524.

It is a junction number, because it is equal to n+sod(n) for n = 42531125091 and 42531125100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10870009 + ... + 10873920.

Almost surely, 2^42531125124 is an apocalyptic number.

It is an amenable number.

42531125124 is an abundant number, since it is smaller than the sum of its proper divisors (57317001436).

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

42531125124 is a wasteful number, since it uses less digits than its factorization.

42531125124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21744099 (or 21744097 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

Adding to 42531125124 its reverse (42152113524), we get a palindrome (84683238648).

The spelling of 42531125124 in words is "forty-two billion, five hundred thirty-one million, one hundred twenty-five thousand, one hundred twenty-four".