20110011201111 has 24 divisors (see below), whose sum is σ = 29036018426880. Its totient is φ = 12374775163296.

The previous prime is 20110011201107. The next prime is 20110011201127. The reversal of 20110011201111 is 11110211001102.

It is not a de Polignac number, because 20110011201111 - 2² = 20110011201107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110011201101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9307920 + ... + 11263098.

It is an arithmetic number, because the mean of its divisors is an integer number (1209834101120).

Almost surely, 2^{20110011201111} is an apocalyptic number.

20110011201111 is a deficient number, since it is larger than the sum of its proper divisors (8926007225769).

20110011201111 is a wasteful number, since it uses less digits than its factorization.

20110011201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975495 (or 1975482 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 20110011201111 its reverse (11110211001102), we get a palindrome (31220222202213).

The spelling of 20110011201111 in words is "twenty trillion, one hundred ten billion, eleven million, two hundred one thousand, one hundred eleven".