42113431125 has 48 divisors (see below), whose sum is σ = 79912123200. Its totient is φ = 21278354400.

The previous prime is 42113431109. The next prime is 42113431133. The reversal of 42113431125 is 52113431124.

42113431125 is a `hidden beast` number, since 4 + 211 + 3 + 431 + 12 + 5 = 666.

It is not a de Polignac number, because 42113431125 - 2⁴ = 42113431109 is a prime.

It is a super-2 number, since 2×42113431125² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 963735 + ... + 1006484.

It is an arithmetic number, because the mean of its divisors is an integer number (1664835900).

Almost surely, 2^42113431125 is an apocalyptic number.

42113431125 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42113431125 is a deficient number, since it is larger than the sum of its proper divisors (37798692075).

42113431125 is a wasteful number, since it uses less digits than its factorization.

42113431125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970259 (or 1970246 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

Adding to 42113431125 its reverse (52113431124), we get a palindrome (94226862249).

Subtracting 42113431125 from its reverse (52113431124), we obtain a palindrome (9999999999).

The spelling of 42113431125 in words is "forty-two billion, one hundred thirteen million, four hundred thirty-one thousand, one hundred twenty-five".