131423222125 has 16 divisors (see below), whose sum is σ = 176632812720. Its totient is φ = 97050993600.

The previous prime is 131423222089. The next prime is 131423222171. The reversal of 131423222125 is 521222324131.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 96847307209 + 34575914916 = 311203^2 + 185946^2 .

It is not a de Polignac number, because 131423222125 - 2²¹ = 131421124973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131423222093 and 131423222102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40436290 + ... + 40439539.

It is an arithmetic number, because the mean of its divisors is an integer number (11039550795).

Almost surely, 2^131423222125 is an apocalyptic number.

It is an amenable number.

131423222125 is a deficient number, since it is larger than the sum of its proper divisors (45209590595).

131423222125 is an equidigital number, since it uses as much as digits as its factorization.

131423222125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80875857 (or 80875847 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

Adding to 131423222125 its reverse (521222324131), we get a palindrome (652645546256).

The spelling of 131423222125 in words is "one hundred thirty-one billion, four hundred twenty-three million, two hundred twenty-two thousand, one hundred twenty-five".