1232123102112 has 192 divisors, whose sum is σ = 3925029830400. Its totient is φ = 330376790016.

The previous prime is 1232123102071. The next prime is 1232123102117. The reversal of 1232123102112 is 2112013212321.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1232123102117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3832458 + ... + 4141494.

It is an arithmetic number, because the mean of its divisors is an integer number (20442863700).

Almost surely, 2^{1232123102112} is an apocalyptic number.

1232123102112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1232123102112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1962514915200).

1232123102112 is an abundant number, since it is smaller than the sum of its proper divisors (2692906728288).

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

1232123102112 is a wasteful number, since it uses less digits than its factorization.

1232123102112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309423 (or 309415 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1232123102112 its reverse (2112013212321), we get a palindrome (3344136314433).

The spelling of 1232123102112 in words is "one trillion, two hundred thirty-two billion, one hundred twenty-three million, one hundred two thousand, one hundred twelve".