42103113125 has 10 divisors (see below), whose sum is σ = 52612050942. Its totient is φ = 33682490000.

The previous prime is 42103113083. The next prime is 42103113179. The reversal of 42103113125 is 52131130124.

It can be written as a sum of positive squares in 5 ways, for example, as 14478346276 + 27624766849 = 120326^2 + 166207^2 .

It is not a de Polignac number, because 42103113125 - 2²⁰ = 42102064549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42103113125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 33681866 + ... + 33683115.

Almost surely, 2^42103113125 is an apocalyptic number.

It is an amenable number.

42103113125 is a deficient number, since it is larger than the sum of its proper divisors (10508937817).

42103113125 is an frugal number, since it uses more digits than its factorization.

42103113125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67365001 (or 67364986 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 42103113125 its reverse (52131130124), we get a palindrome (94234243249).

The spelling of 42103113125 in words is "forty-two billion, one hundred three million, one hundred thirteen thousand, one hundred twenty-five".