13125325123523 has 2 divisors, whose sum is σ = 13125325123524. Its totient is φ = 13125325123522.

The previous prime is 13125325123507. The next prime is 13125325123543. The reversal of 13125325123523 is 32532152352131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13125325123523 - 2⁴ = 13125325123507 is a prime.

It is a super-4 number, since 4×13125325123523⁴ (a number of 54 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (13125325123543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6562662561761 + 6562662561762.

It is an arithmetic number, because the mean of its divisors is an integer number (6562662561762).

Almost surely, 2^{13125325123523} is an apocalyptic number.

13125325123523 is a deficient number, since it is larger than the sum of its proper divisors (1).

13125325123523 is an equidigital number, since it uses as much as digits as its factorization.

13125325123523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162000, while the sum is 38.

Adding to 13125325123523 its reverse (32532152352131), we get a palindrome (45657477475654).

The spelling of 13125325123523 in words is "thirteen trillion, one hundred twenty-five billion, three hundred twenty-five million, one hundred twenty-three thousand, five hundred twenty-three".