20123125 has 20 divisors (see below), whose sum is σ = 27441216. Its totient is φ = 14630000.

The previous prime is 20123119. The next prime is 20123141. The reversal of 20123125 is 52132102.

It is not a de Polignac number, because 20123125 - 2⁷ = 20122997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20123099 and 20123108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5412 + ... + 8338.

Almost surely, 2^20123125 is an apocalyptic number.

20123125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20123125 is a deficient number, since it is larger than the sum of its proper divisors (7318091).

20123125 is an equidigital number, since it uses as much as digits as its factorization.

20123125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2958 (or 2943 counting only the distinct ones).

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

The square root of 20123125 is about 4485.8806270341. The cubic root of 20123125 is about 271.9976436142.

Adding to 20123125 its reverse (52132102), we get a palindrome (72255227).

The spelling of 20123125 in words is "twenty million, one hundred twenty-three thousand, one hundred twenty-five".