125245105203 has 4 divisors (see below), whose sum is σ = 166993473608. Its totient is φ = 83496736800.

The previous prime is 125245105171. The next prime is 125245105207. The reversal of 125245105203 is 302501542521.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 125245105203 - 2⁵ = 125245105171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125245105207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20874184198 + ... + 20874184203.

It is an arithmetic number, because the mean of its divisors is an integer number (41748368402).

Almost surely, 2^125245105203 is an apocalyptic number.

125245105203 is a deficient number, since it is larger than the sum of its proper divisors (41748368405).

125245105203 is an equidigital number, since it uses as much as digits as its factorization.

125245105203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41748368404.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 125245105203 its reverse (302501542521), we get a palindrome (427746647724).

The spelling of 125245105203 in words is "one hundred twenty-five billion, two hundred forty-five million, one hundred five thousand, two hundred three".