123012313244112 has 40 divisors (see below), whose sum is σ = 317782770266656. Its totient is φ = 41003980407936.

The previous prime is 123012313244071. The next prime is 123012313244129. The reversal of 123012313244112 is 211442313210321.

It is a self number, because there is not a number n which added to its sum of digits gives 123012313244112.

It is a congruent number.

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, 12911463 + ... + 20315769.

Almost surely, 2^{123012313244112} is an apocalyptic number.

123012313244112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123012313244112 is an abundant number, since it is smaller than the sum of its proper divisors (194770457022544).

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

123012313244112 is a wasteful number, since it uses less digits than its factorization.

123012313244112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7750435 (or 7750429 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 123012313244112 its reverse (211442313210321), we get a palindrome (334454626454433).

The spelling of 123012313244112 in words is "one hundred twenty-three trillion, twelve billion, three hundred thirteen million, two hundred forty-four thousand, one hundred twelve".