20011011102102 has 16 divisors (see below), whose sum is σ = 40025812654080. Its totient is φ = 6669705292392.

The previous prime is 20011011102007. The next prime is 20011011102157. The reversal of 20011011102102 is 20120111011002.

It is a congruent number.

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, 157866778 + ... + 157993485.

It is an arithmetic number, because the mean of its divisors is an integer number (2501613290880).

Almost surely, 2^{20011011102102} is an apocalyptic number.

20011011102102 is an abundant number, since it is smaller than the sum of its proper divisors (20014801551978).

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

20011011102102 is a wasteful number, since it uses less digits than its factorization.

20011011102102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315870827.

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

Adding to 20011011102102 its reverse (20120111011002), we get a palindrome (40131122113104).

The spelling of 20011011102102 in words is "twenty trillion, eleven billion, eleven million, one hundred two thousand, one hundred two".