111011102012011 has 4 divisors (see below), whose sum is σ = 112088879701552. Its totient is φ = 109933324322472.

The previous prime is 111011102011973. The next prime is 111011102012017. The reversal of 111011102012011 is 110210201110111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111011102012011 - 2²¹ = 111011099914859 is a prime.

It is a super-2 number, since 2×111011102012011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111011102011982 and 111011102012000.

It is not an unprimeable number, because it can be changed into a prime (111011102012017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538888844616 + ... + 538888844821.

It is an arithmetic number, because the mean of its divisors is an integer number (28022219925388).

Almost surely, 2^{111011102012011} is an apocalyptic number.

111011102012011 is a deficient number, since it is larger than the sum of its proper divisors (1077777689541).

111011102012011 is a wasteful number, since it uses less digits than its factorization.

111011102012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077777689540.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111011102012011 its reverse (110210201110111), we get a palindrome (221221303122122).

The spelling of 111011102012011 in words is "one hundred eleven trillion, eleven billion, one hundred two million, twelve thousand, eleven".