20112220131300 has 432 divisors, whose sum is σ = 71135041232640. Its totient is φ = 4871182060800.

The previous prime is 20112220131251. The next prime is 20112220131313. The reversal of 20112220131300 is 313102221102.

20112220131300 is a `hidden beast` number, since 2 + 0 + 1 + 12 + 220 + 131 + 300 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 360322194 + ... + 360378006.

Almost surely, 2^{20112220131300} is an apocalyptic number.

20112220131300 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 20112220131300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35567520616320).

20112220131300 is an abundant number, since it is smaller than the sum of its proper divisors (51022821101340).

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

20112220131300 is a wasteful number, since it uses less digits than its factorization.

20112220131300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56961 (or 56937 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20112220131300 its reverse (313102221102), we get a palindrome (20425322352402).

The spelling of 20112220131300 in words is "twenty trillion, one hundred twelve billion, two hundred twenty million, one hundred thirty-one thousand, three hundred".