12102320034420 has 768 divisors, whose sum is σ = 44209165271040. Its totient is φ = 2400765696000.

The previous prime is 12102320034391. The next prime is 12102320034491. The reversal of 12102320034420 is 2443002320121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 8340674695 + ... + 8340676145.

It is an arithmetic number, because the mean of its divisors is an integer number (57564017280).

Almost surely, 2^{12102320034420} is an apocalyptic number.

12102320034420 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 12102320034420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22104582635520).

12102320034420 is an abundant number, since it is smaller than the sum of its proper divisors (32106845236620).

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

12102320034420 is a wasteful number, since it uses less digits than its factorization.

12102320034420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404 (or 2402 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12102320034420 its reverse (2443002320121), we get a palindrome (14545322354541).

The spelling of 12102320034420 in words is "twelve trillion, one hundred two billion, three hundred twenty million, thirty-four thousand, four hundred twenty".