125013123 has 6 divisors (see below), whose sum is σ = 180574524. Its totient is φ = 83342076.

The previous prime is 125013067. The next prime is 125013127. The reversal of 125013123 is 321310521.

It is not a de Polignac number, because 125013123 - 2¹⁶ = 124947587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125013096 and 125013105.

It is not an unprimeable number, because it can be changed into a prime (125013127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6945165 + ... + 6945182.

It is an arithmetic number, because the mean of its divisors is an integer number (30095754).

Almost surely, 2^125013123 is an apocalyptic number.

125013123 is a deficient number, since it is larger than the sum of its proper divisors (55561401).

125013123 is a wasteful number, since it uses less digits than its factorization.

125013123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13890353 (or 13890350 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 125013123 is about 11180.9267504979. The cubic root of 125013123 is about 500.0174967211.

Adding to 125013123 its reverse (321310521), we get a palindrome (446323644).

The spelling of 125013123 in words is "one hundred twenty-five million, thirteen thousand, one hundred twenty-three".