12310103123220 has 192 divisors, whose sum is σ = 41468922593280. Its totient is φ = 2665433475072.

The previous prime is 12310103123191. The next prime is 12310103123221. The reversal of 12310103123220 is 2232130101321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12310103123221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 112806604 + ... + 112915676.

It is an arithmetic number, because the mean of its divisors is an integer number (215983971840).

Almost surely, 2^{12310103123220} is an apocalyptic number.

12310103123220 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 12310103123220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20734461296640).

12310103123220 is an abundant number, since it is smaller than the sum of its proper divisors (29158819470060).

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

12310103123220 is a wasteful number, since it uses less digits than its factorization.

12310103123220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123254 (or 123252 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12310103123220 its reverse (2232130101321), we get a palindrome (14542233224541).

The spelling of 12310103123220 in words is "twelve trillion, three hundred ten billion, one hundred three million, one hundred twenty-three thousand, two hundred twenty".