123200025 has 24 divisors (see below), whose sum is σ = 219360960. Its totient is φ = 60651840.

The previous prime is 123200023. The next prime is 123200041. The reversal of 123200025 is 520002321.

It is not a de Polignac number, because 123200025 - 2¹ = 123200023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 123199977 and 123200013.

It is not an unprimeable number, because it can be changed into a prime (123200023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62205 + ... + 64154.

It is an arithmetic number, because the mean of its divisors is an integer number (9140040).

Almost surely, 2^123200025 is an apocalyptic number.

123200025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123200025 is a deficient number, since it is larger than the sum of its proper divisors (96160935).

123200025 is a wasteful number, since it uses less digits than its factorization.

123200025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126385 (or 126380 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 123200025 is about 11099.5506665811. The cubic root of 123200025 is about 497.5884206030.

Adding to 123200025 its reverse (520002321), we get a palindrome (643202346).

The spelling of 123200025 in words is "one hundred twenty-three million, two hundred thousand, twenty-five".