123412112 has 40 divisors (see below), whose sum is σ = 264197376. Its totient is φ = 55548416.

The previous prime is 123412099. The next prime is 123412127. The reversal of 123412112 is 211214321.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 3608 + ... + 16119.

Almost surely, 2^123412112 is an apocalyptic number.

It is an amenable number.

123412112 is an abundant number, since it is smaller than the sum of its proper divisors (140785264).

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

123412112 is a wasteful number, since it uses less digits than its factorization.

123412112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19775 (or 19769 counting only the distinct ones).

The product of its digits is 96, while the sum is 17.

The square root of 123412112 is about 11109.1004136249. The cubic root of 123412112 is about 497.8737872549.

Adding to 123412112 its reverse (211214321), we get a palindrome (334626433).

The spelling of 123412112 in words is "one hundred twenty-three million, four hundred twelve thousand, one hundred twelve".