2102124140130 has 128 divisors (see below), whose sum is σ = 5954045644800. Its totient is φ = 465005608704.

The previous prime is 2102124140117. The next prime is 2102124140153. The reversal of 2102124140130 is 310414212012.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2102124140097 and 2102124140106.

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, 83590 + ... + 2052129.

It is an arithmetic number, because the mean of its divisors is an integer number (46515981600).

Almost surely, 2^{2102124140130} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2102124140130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2977022822400).

2102124140130 is an abundant number, since it is smaller than the sum of its proper divisors (3851921504670).

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

2102124140130 is a wasteful number, since it uses less digits than its factorization.

2102124140130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135888.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 2102124140130 its reverse (310414212012), we get a palindrome (2412538352142).

The spelling of 2102124140130 in words is "two trillion, one hundred two billion, one hundred twenty-four million, one hundred forty thousand, one hundred thirty".