123210112211120 has 80 divisors (see below), whose sum is σ = 312540620182560. Its totient is φ = 44798663270400.

The previous prime is 123210112211093. The next prime is 123210112211129. The reversal of 123210112211120 is 21112211012321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 123210112211092 and 123210112211101.

It is not an unprimeable number, because it can be changed into a prime (123210112211129) 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, 38336 + ... + 15697824.

It is an arithmetic number, because the mean of its divisors is an integer number (3906757752282).

Almost surely, 2^{123210112211120} is an apocalyptic number.

123210112211120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123210112211120 is an abundant number, since it is smaller than the sum of its proper divisors (189330507971440).

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

123210112211120 is a wasteful number, since it uses less digits than its factorization.

123210112211120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15668454 (or 15668448 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 123210112211120 its reverse (21112211012321), we get a palindrome (144322323223441).

The spelling of 123210112211120 in words is "one hundred twenty-three trillion, two hundred ten billion, one hundred twelve million, two hundred eleven thousand, one hundred twenty".