20120130011100 has 144 divisors (see below), whose sum is σ = 66547697619200. Its totient is φ = 4597702456320.

The previous prime is 20120130011057. The next prime is 20120130011159. The reversal of 20120130011100 is 111003102102.

It is a super-2 number, since 2×20120130011100² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6935091 + ... + 9398709.

Almost surely, 2^{20120130011100} is an apocalyptic number.

20120130011100 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 20120130011100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33273848809600).

20120130011100 is an abundant number, since it is smaller than the sum of its proper divisors (46427567608100).

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

20120130011100 is a wasteful number, since it uses less digits than its factorization.

20120130011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467532 (or 2467525 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 20120130011100 its reverse (111003102102), we get a palindrome (20231133113202).

The spelling of 20120130011100 in words is "twenty trillion, one hundred twenty billion, one hundred thirty million, eleven thousand, one hundred".