1112123100120 has 128 divisors (see below), whose sum is σ = 3364959386880. Its totient is φ = 294034752000.

The previous prime is 1112123100059. The next prime is 1112123100133. The reversal of 1112123100120 is 210013212111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1112123100120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7111975 + ... + 7266665.

It is an arithmetic number, because the mean of its divisors is an integer number (26288745210).

Almost surely, 2^{1112123100120} is an apocalyptic number.

1112123100120 is a gapful number since it is divisible by the number (10) 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 1112123100120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1682479693440).

1112123100120 is an abundant number, since it is smaller than the sum of its proper divisors (2252836286760).

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

1112123100120 is a wasteful number, since it uses less digits than its factorization.

1112123100120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155217 (or 155213 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1112123100120 its reverse (210013212111), we get a palindrome (1322136312231).

The spelling of 1112123100120 in words is "one trillion, one hundred twelve billion, one hundred twenty-three million, one hundred thousand, one hundred twenty".