123225123 has 16 divisors (see below), whose sum is σ = 188172800. Its totient is φ = 70263936.

The previous prime is 123225121. The next prime is 123225139. The reversal of 123225123 is 321522321.

It is not a de Polignac number, because 123225123 - 2¹ = 123225121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123225123.

It is not an unprimeable number, because it can be changed into a prime (123225121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4203 + ... + 16251.

It is an arithmetic number, because the mean of its divisors is an integer number (11760800).

Almost surely, 2^123225123 is an apocalyptic number.

123225123 is a deficient number, since it is larger than the sum of its proper divisors (64947677).

123225123 is a wasteful number, since it uses less digits than its factorization.

123225123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12546.

The product of its digits is 720, while the sum is 21.

The square root of 123225123 is about 11100.6811953141. The cubic root of 123225123 is about 497.6222074637.

Adding to 123225123 its reverse (321522321), we get a palindrome (444747444).

The spelling of 123225123 in words is "one hundred twenty-three million, two hundred twenty-five thousand, one hundred twenty-three".