123121230413112 has 64 divisors (see below), whose sum is σ = 351246753453600. Its totient is φ = 39931209861120.

The previous prime is 123121230413099. The next prime is 123121230413113. The reversal of 123121230413112 is 211314032121321.

123121230413112 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 2 + 1 + 230 + 413 + 1 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123121230413113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7702771689 + ... + 7702787672.

Almost surely, 2^{123121230413112} is an apocalyptic number.

123121230413112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123121230413112 is an abundant number, since it is smaller than the sum of its proper divisors (228125523040488).

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

123121230413112 is a wasteful number, since it uses less digits than its factorization.

123121230413112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15405559413 (or 15405559403 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 123121230413112 its reverse (211314032121321), we get a palindrome (334435262534433).

The spelling of 123121230413112 in words is "one hundred twenty-three trillion, one hundred twenty-one billion, two hundred thirty million, four hundred thirteen thousand, one hundred twelve".