123412312 has 8 divisors (see below), whose sum is σ = 231398100. Its totient is φ = 61706152.

The previous prime is 123412309. The next prime is 123412321. The reversal of 123412312 is 213214321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 123412312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7713262 + ... + 7713277.

Almost surely, 2^123412312 is an apocalyptic number.

It is an amenable number.

123412312 is a deficient number, since it is larger than the sum of its proper divisors (107985788).

123412312 is a wasteful number, since it uses less digits than its factorization.

123412312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15426545 (or 15426541 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 123412312 is about 11109.1094152502. The cubic root of 123412312 is about 497.8740562039.

Adding to 123412312 its reverse (213214321), we get a palindrome (336626633).

The spelling of 123412312 in words is "one hundred twenty-three million, four hundred twelve thousand, three hundred twelve".