125040105103 has 4 divisors (see below), whose sum is σ = 127948014568. Its totient is φ = 122132195640.

The previous prime is 125040105053. The next prime is 125040105161. The reversal of 125040105103 is 301501040521.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 125040105103 - 2¹³ = 125040096911 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 (125040105403) 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, 1453954668 + ... + 1453954753.

It is an arithmetic number, because the mean of its divisors is an integer number (31987003642).

Almost surely, 2^125040105103 is an apocalyptic number.

125040105103 is a deficient number, since it is larger than the sum of its proper divisors (2907909465).

125040105103 is an equidigital number, since it uses as much as digits as its factorization.

125040105103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2907909464.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 125040105103 its reverse (301501040521), we get a palindrome (426541145624).

The spelling of 125040105103 in words is "one hundred twenty-five billion, forty million, one hundred five thousand, one hundred three".