12525212423431 has 2 divisors, whose sum is σ = 12525212423432. Its totient is φ = 12525212423430.

The previous prime is 12525212423411. The next prime is 12525212423483. The reversal of 12525212423431 is 13432421252521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12525212423431 - 2²⁵ = 12525178868999 is a prime.

It is a super-2 number, since 2×12525212423431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12525212423411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6262606211715 + 6262606211716.

It is an arithmetic number, because the mean of its divisors is an integer number (6262606211716).

Almost surely, 2^{12525212423431} is an apocalyptic number.

12525212423431 is a deficient number, since it is larger than the sum of its proper divisors (1).

12525212423431 is an equidigital number, since it uses as much as digits as its factorization.

12525212423431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 115200, while the sum is 37.

Adding to 12525212423431 its reverse (13432421252521), we get a palindrome (25957633675952).

The spelling of 12525212423431 in words is "twelve trillion, five hundred twenty-five billion, two hundred twelve million, four hundred twenty-three thousand, four hundred thirty-one".