111102111120111 has 16 divisors (see below), whose sum is σ = 161089229480544. Its totient is φ = 67827043989504.

The previous prime is 111102111120053. The next prime is 111102111120163. The reversal of 111102111120111 is 111021111201111.

It is a happy number.

It is not a de Polignac number, because 111102111120111 - 2¹⁴ = 111102111103727 is a prime.

It is a super-3 number, since 3×111102111120111³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111102111100111) 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, 29438819290 + ... + 29438823063.

It is an arithmetic number, because the mean of its divisors is an integer number (10068076842534).

Almost surely, 2^{111102111120111} is an apocalyptic number.

111102111120111 is a deficient number, since it is larger than the sum of its proper divisors (49987118360433).

111102111120111 is a wasteful number, since it uses less digits than its factorization.

111102111120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58877642410.

The product of its (nonzero) digits is 4, while the sum is 15.

Adding to 111102111120111 its reverse (111021111201111), we get a palindrome (222123222321222).

The spelling of 111102111120111 in words is "one hundred eleven trillion, one hundred two billion, one hundred eleven million, one hundred twenty thousand, one hundred eleven".