12530125231145 has 16 divisors (see below), whose sum is σ = 15077109240720. Its totient is φ = 9996831043584.

The previous prime is 12530125231133. The next prime is 12530125231147. The reversal of 12530125231145 is 54113252103521.

12530125231145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1444015595584 + 11086109635561 = 1201672^2 + 3329581^2 .

It is a cyclic number.

It is not a de Polignac number, because 12530125231145 - 2⁶ = 12530125231081 is a prime.

It is a super-2 number, since 2×12530125231145² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12530125231147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420887 + ... + 5023683.

It is an arithmetic number, because the mean of its divisors is an integer number (942319327545).

Almost surely, 2^{12530125231145} is an apocalyptic number.

It is an amenable number.

12530125231145 is a deficient number, since it is larger than the sum of its proper divisors (2546984009575).

12530125231145 is an equidigital number, since it uses as much as digits as its factorization.

12530125231145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4604284.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 12530125231145 its reverse (54113252103521), we get a palindrome (66643377334666).

The spelling of 12530125231145 in words is "twelve trillion, five hundred thirty billion, one hundred twenty-five million, two hundred thirty-one thousand, one hundred forty-five".