123123102 has 8 divisors (see below), whose sum is σ = 246246216. Its totient is φ = 41041032.

The previous prime is 123123083. The next prime is 123123107. The reversal of 123123102 is 201321321.

It is a sphenic number, since it is the product of 3 distinct primes.

123123102 is an admirable number.

It is a super-2 number, since 2×123123102² = 30318596492204808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123123107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10260253 + ... + 10260264.

It is an arithmetic number, because the mean of its divisors is an integer number (30780777).

Almost surely, 2^123123102 is an apocalyptic number.

123123102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123123102 is a wasteful number, since it uses less digits than its factorization.

123123102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20520522.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 123123102 is about 11096.0849852549. The cubic root of 123123102 is about 497.4848384730.

Adding to 123123102 its reverse (201321321), we get a palindrome (324444423).

The spelling of 123123102 in words is "one hundred twenty-three million, one hundred twenty-three thousand, one hundred two".