123130025 has 24 divisors (see below), whose sum is σ = 156281664. Its totient is φ = 96206400.

The previous prime is 123130003. The next prime is 123130039. The reversal of 123130025 is 520031321.

It is not a de Polignac number, because 123130025 - 2⁶ = 123129961 is a prime.

It is a super-2 number, since 2×123130025² = 30322006113001250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123129985 and 123130012.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 400922 + ... + 401228.

It is an arithmetic number, because the mean of its divisors is an integer number (6511736).

Almost surely, 2^123130025 is an apocalyptic number.

It is an amenable number.

123130025 is a deficient number, since it is larger than the sum of its proper divisors (33151639).

123130025 is a wasteful number, since it uses less digits than its factorization.

123130025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 123130025 is about 11096.3969377452. The cubic root of 123130025 is about 497.4941625368.

Adding to 123130025 its reverse (520031321), we get a palindrome (643161346).

The spelling of 123130025 in words is "one hundred twenty-three million, one hundred thirty thousand, twenty-five".