123002125 has 8 divisors (see below), whose sum is σ = 153506808. Its totient is φ = 98401600.

The previous prime is 123002119. The next prime is 123002129. The reversal of 123002125 is 521200321.

It can be written as a sum of positive squares in 4 ways, for example, as 2244004 + 120758121 = 1498^2 + 10989^2 .

It is not a de Polignac number, because 123002125 - 2⁷ = 123001997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123002099 and 123002108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123002129) 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, 491884 + ... + 492133.

It is an arithmetic number, because the mean of its divisors is an integer number (19188351).

Almost surely, 2^123002125 is an apocalyptic number.

It is an amenable number.

123002125 is a deficient number, since it is larger than the sum of its proper divisors (30504683).

123002125 is an frugal number, since it uses more digits than its factorization.

123002125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984032 (or 984022 counting only the distinct ones).

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

The square root of 123002125 is about 11090.6323083943. The cubic root of 123002125 is about 497.3218472747.

Adding to 123002125 its reverse (521200321), we get a palindrome (644202446).

The spelling of 123002125 in words is "one hundred twenty-three million, two thousand, one hundred twenty-five".