20113112301220 has 12 divisors (see below), whose sum is σ = 42237535832604. Its totient is φ = 8045244920480.

The previous prime is 20113112301091. The next prime is 20113112301239. The reversal of 20113112301220 is 2210321131102.

It can be written as a sum of positive squares in 2 ways, for example, as 7093774135396 + 13019338165824 = 2663414^2 + 3608232^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502827807511 + ... + 502827807550.

It is an arithmetic number, because the mean of its divisors is an integer number (3519794652717).

Almost surely, 2^{20113112301220} is an apocalyptic number.

20113112301220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20113112301220 is an abundant number, since it is smaller than the sum of its proper divisors (22124423531384).

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

20113112301220 is a wasteful number, since it uses less digits than its factorization.

20113112301220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005655615070 (or 1005655615068 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20113112301220 its reverse (2210321131102), we get a palindrome (22323433432322).

The spelling of 20113112301220 in words is "twenty trillion, one hundred thirteen billion, one hundred twelve million, three hundred one thousand, two hundred twenty".