20120102130300 has 576 divisors, whose sum is σ = 63292049049600. Its totient is φ = 4918164480000.

The previous prime is 20120102130187. The next prime is 20120102130313. The reversal of 20120102130300 is 303120102102.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20120102130300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 17036495710 + ... + 17036496890.

It is an arithmetic number, because the mean of its divisors is an integer number (109882029600).

Almost surely, 2^{20120102130300} is an apocalyptic number.

20120102130300 is a gapful number since it is divisible by the number (20) 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 20120102130300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31646024524800).

20120102130300 is an abundant number, since it is smaller than the sum of its proper divisors (43171946919300).

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

20120102130300 is a wasteful number, since it uses less digits than its factorization.

20120102130300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798 (or 1791 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20120102130300 its reverse (303120102102), we get a palindrome (20423222232402).

The spelling of 20120102130300 in words is "twenty trillion, one hundred twenty billion, one hundred two million, one hundred thirty thousand, three hundred".