11101020111111 has 24 divisors (see below), whose sum is σ = 17317434267504. Its totient is φ = 6306772765440.

The previous prime is 11101020111089. The next prime is 11101020111191. The reversal of 11101020111111 is 11111102010111.

It is not a de Polignac number, because 11101020111111 - 2¹⁴ = 11101020094727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101020111191) 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, 218232210 + ... + 218283071.

It is an arithmetic number, because the mean of its divisors is an integer number (721559761146).

Almost surely, 2^{11101020111111} is an apocalyptic number.

11101020111111 is a deficient number, since it is larger than the sum of its proper divisors (6216414156393).

11101020111111 is a wasteful number, since it uses less digits than its factorization.

11101020111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436515471 (or 436515464 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 11101020111111 its reverse (11111102010111), we get a palindrome (22212122121222).

The spelling of 11101020111111 in words is "eleven trillion, one hundred one billion, twenty million, one hundred eleven thousand, one hundred eleven".