123100222320 has 120 divisors (see below), whose sum is σ = 414399258000. Its totient is φ = 32748300288.

The previous prime is 123100222307. The next prime is 123100222339. The reversal of 123100222320 is 23222001321.

123100222320 is a `hidden beast` number, since 1 + 23 + 100 + 222 + 320 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 123100222293 and 123100222302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97656 + ... + 505704.

It is an arithmetic number, because the mean of its divisors is an integer number (3453327150).

Almost surely, 2^123100222320 is an apocalyptic number.

123100222320 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 123100222320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207199629000).

123100222320 is an abundant number, since it is smaller than the sum of its proper divisors (291299035680).

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

123100222320 is a wasteful number, since it uses less digits than its factorization.

123100222320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408487 (or 408478 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 123100222320 its reverse (23222001321), we get a palindrome (146322223641).

The spelling of 123100222320 in words is "one hundred twenty-three billion, one hundred million, two hundred twenty-two thousand, three hundred twenty".