125425421345223 has 64 divisors (see below), whose sum is σ = 188910025920000. Its totient is φ = 82236013032960.

The previous prime is 125425421345221. The next prime is 125425421345251. The reversal of 125425421345223 is 322543124524521.

125425421345223 is a `hidden beast` number, since 1 + 2 + 5 + 4 + 2 + 542 + 1 + 34 + 52 + 23 = 666.

125425421345223 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 125425421345223 - 2¹ = 125425421345221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125425421345221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2049036088 + ... + 2049097298.

It is an arithmetic number, because the mean of its divisors is an integer number (2951719155000).

Almost surely, 2^{125425421345223} is an apocalyptic number.

125425421345223 is a deficient number, since it is larger than the sum of its proper divisors (63484604574777).

125425421345223 is a wasteful number, since it uses less digits than its factorization.

125425421345223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66477 (or 66471 counting only the distinct ones).

The product of its digits is 2304000, while the sum is 45.

Adding to 125425421345223 its reverse (322543124524521), we get a palindrome (447968545869744).

The spelling of 125425421345223 in words is "one hundred twenty-five trillion, four hundred twenty-five billion, four hundred twenty-one million, three hundred forty-five thousand, two hundred twenty-three".