125403404312305 has 16 divisors (see below), whose sum is σ = 173914191538560. Its totient is φ = 85024715859072.

The previous prime is 125403404312281. The next prime is 125403404312309. The reversal of 125403404312305 is 503213404304521.

It is a cyclic number.

It is not a de Polignac number, because 125403404312305 - 2⁹ = 125403404311793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125403404312309) 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, 20128954239 + ... + 20128960468.

It is an arithmetic number, because the mean of its divisors is an integer number (10869636971160).

Almost surely, 2^{125403404312305} is an apocalyptic number.

It is an amenable number.

125403404312305 is a deficient number, since it is larger than the sum of its proper divisors (48510787226255).

125403404312305 is an equidigital number, since it uses as much as digits as its factorization.

125403404312305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40257914808.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 125403404312305 its reverse (503213404304521), we get a palindrome (628616808616826).

The spelling of 125403404312305 in words is "one hundred twenty-five trillion, four hundred three billion, four hundred four million, three hundred twelve thousand, three hundred five".