123100331320120 has 256 divisors, whose sum is σ = 346168426705920. Its totient is φ = 38274807398400.

The previous prime is 123100331320117. The next prime is 123100331320159. The reversal of 123100331320120 is 21023133001321.

It is a super-2 number, since 2×123100331320120² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 123100331320091 and 123100331320100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2535983050 + ... + 2536031590.

It is an arithmetic number, because the mean of its divisors is an integer number (1352220416820).

Almost surely, 2^{123100331320120} is an apocalyptic number.

123100331320120 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 123100331320120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173084213352960).

123100331320120 is an abundant number, since it is smaller than the sum of its proper divisors (223068095385800).

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

123100331320120 is a wasteful number, since it uses less digits than its factorization.

123100331320120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50574 (or 50570 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123100331320120 its reverse (21023133001321), we get a palindrome (144123464321441).

The spelling of 123100331320120 in words is "one hundred twenty-three trillion, one hundred billion, three hundred thirty-one million, three hundred twenty thousand, one hundred twenty".