125203120 has 40 divisors (see below), whose sum is σ = 332684064. Its totient is φ = 42926592.

The previous prime is 125203109. The next prime is 125203123. The reversal of 125203120 is 21302521.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 125203094 and 125203103.

It is not an unprimeable number, because it can be changed into a prime (125203123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111229 + ... + 112348.

Almost surely, 2^125203120 is an apocalyptic number.

125203120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125203120 is an abundant number, since it is smaller than the sum of its proper divisors (207480944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125203120 is a wasteful number, since it uses less digits than its factorization.

125203120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223597 (or 223591 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 125203120 is about 11189.4200028420. The cubic root of 125203120 is about 500.2706801048.

Adding to 125203120 its reverse (21302521), we get a palindrome (146505641).

The spelling of 125203120 in words is "one hundred twenty-five million, two hundred three thousand, one hundred twenty".