125203103 has 12 divisors (see below), whose sum is σ = 133977888. Its totient is φ = 116964000.

The previous prime is 125203097. The next prime is 125203109. The reversal of 125203103 is 301302521.

It is an interprime number because it is at equal distance from previous prime (125203097) and next prime (125203109).

It is not a de Polignac number, because 125203103 - 2¹⁶ = 125137567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125203109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23978 + ... + 28728.

It is an arithmetic number, because the mean of its divisors is an integer number (11164824).

Almost surely, 2^125203103 is an apocalyptic number.

125203103 is a deficient number, since it is larger than the sum of its proper divisors (8774785).

125203103 is an equidigital number, since it uses as much as digits as its factorization.

125203103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4862 (or 4843 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 125203103 is about 11189.4192431958. The cubic root of 125203103 is about 500.2706574626.

Adding to 125203103 its reverse (301302521), we get a palindrome (426505624).

The spelling of 125203103 in words is "one hundred twenty-five million, two hundred three thousand, one hundred three".