20020112011011 has 16 divisors (see below), whose sum is σ = 30531262400000. Its totient is φ = 11430904612608.

The previous prime is 20020112010961. The next prime is 20020112011049. The reversal of 20020112011011 is 11011021102002.

It is not a de Polignac number, because 20020112011011 - 2¹⁰ = 20020112009987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20020112001011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381614551 + ... + 381667008.

It is an arithmetic number, because the mean of its divisors is an integer number (1908203900000).

Almost surely, 2^{20020112011011} is an apocalyptic number.

20020112011011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20020112011011 is a deficient number, since it is larger than the sum of its proper divisors (10511150388989).

20020112011011 is a wasteful number, since it uses less digits than its factorization.

20020112011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763282818.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20020112011011 its reverse (11011021102002), we get a palindrome (31031133113013).

Subtracting from 20020112011011 its reverse (11011021102002), we obtain a palindrome (9009090909009).

The spelling of 20020112011011 in words is "twenty trillion, twenty billion, one hundred twelve million, eleven thousand, eleven".