123102125 has 8 divisors (see below), whose sum is σ = 153631608. Its totient is φ = 98481600.

The previous prime is 123102113. The next prime is 123102149. The reversal of 123102125 is 521201321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 37039396 + 86062729 = 6086^2 + 9277^2 .

It is not a de Polignac number, because 123102125 - 2⁶ = 123102061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492284 + ... + 492533.

It is an arithmetic number, because the mean of its divisors is an integer number (19203951).

Almost surely, 2^123102125 is an apocalyptic number.

It is an amenable number.

123102125 is a deficient number, since it is larger than the sum of its proper divisors (30529483).

123102125 is an frugal number, since it uses more digits than its factorization.

123102125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984832 (or 984822 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 123102125 is about 11095.1397016892. The cubic root of 123102125 is about 497.4565840079.

Adding to 123102125 its reverse (521201321), we get a palindrome (644303446).

The spelling of 123102125 in words is "one hundred twenty-three million, one hundred two thousand, one hundred twenty-five".