125203065163 has 16 divisors (see below), whose sum is σ = 139103557632. Its totient is φ = 111736072000.

The previous prime is 125203065139. The next prime is 125203065187. The reversal of 125203065163 is 361560302521.

It is an interprime number because it is at equal distance from previous prime (125203065139) and next prime (125203065187).

It is a cyclic number.

It is not a de Polignac number, because 125203065163 - 2¹⁷ = 125202934091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125203065263) 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, 162043 + ... + 525988.

It is an arithmetic number, because the mean of its divisors is an integer number (8693972352).

Almost surely, 2^125203065163 is an apocalyptic number.

125203065163 is a deficient number, since it is larger than the sum of its proper divisors (13900492469).

125203065163 is a wasteful number, since it uses less digits than its factorization.

125203065163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688346.

The product of its (nonzero) digits is 32400, while the sum is 34.

Adding to 125203065163 its reverse (361560302521), we get a palindrome (486763367684).

The spelling of 125203065163 in words is "one hundred twenty-five billion, two hundred three million, sixty-five thousand, one hundred sixty-three".