103112513122525 has 12 divisors (see below), whose sum is σ = 127860230335572. Its totient is φ = 82489549811840.

The previous prime is 103112513122523. The next prime is 103112513122529. The reversal of 103112513122525 is 525221315211301.

It can be written as a sum of positive squares in 6 ways, for example, as 26174827105956 + 76937686016569 = 5116134^2 + 8771413^2 .

It is not a de Polignac number, because 103112513122525 - 2¹ = 103112513122523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103112513122523) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6915094 + ... + 15938743.

It is an arithmetic number, because the mean of its divisors is an integer number (10655019194631).

Almost surely, 2^{103112513122525} is an apocalyptic number.

It is an amenable number.

103112513122525 is a deficient number, since it is larger than the sum of its proper divisors (24747717213047).

103112513122525 is a wasteful number, since it uses less digits than its factorization.

103112513122525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23034320 (or 23034315 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

Adding to 103112513122525 its reverse (525221315211301), we get a palindrome (628333828333826).

The spelling of 103112513122525 in words is "one hundred three trillion, one hundred twelve billion, five hundred thirteen million, one hundred twenty-two thousand, five hundred twenty-five".