20011320131120 has 40 divisors (see below), whose sum is σ = 46567972439664. Its totient is φ = 7997361921792.

The previous prime is 20011320131111. The next prime is 20011320131149. The reversal of 20011320131120 is 2113102311002.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111880874 + ... + 112059593.

Almost surely, 2^{20011320131120} is an apocalyptic number.

20011320131120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20011320131120 is an abundant number, since it is smaller than the sum of its proper divisors (26556652308544).

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

20011320131120 is a wasteful number, since it uses less digits than its factorization.

20011320131120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223941597 (or 223941591 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 20011320131120 its reverse (2113102311002), we get a palindrome (22124422442122).

The spelling of 20011320131120 in words is "twenty trillion, eleven billion, three hundred twenty million, one hundred thirty-one thousand, one hundred twenty".