111120011201111 has 4 divisors (see below), whose sum is σ = 121221830401224. Its totient is φ = 101018192001000.

The previous prime is 111120011201081. The next prime is 111120011201179. The reversal of 111120011201111 is 111102110021111.

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 111120011201111 - 2⁶ = 111120011201047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120011201411) 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, 5050909600040 + ... + 5050909600061.

It is an arithmetic number, because the mean of its divisors is an integer number (30305457600306).

Almost surely, 2^{111120011201111} is an apocalyptic number.

111120011201111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111120011201111 is a deficient number, since it is larger than the sum of its proper divisors (10101819200113).

111120011201111 is a wasteful number, since it uses less digits than its factorization.

111120011201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101819200112.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 111120011201111 its reverse (111102110021111), we get a palindrome (222222121222222).

The spelling of 111120011201111 in words is "one hundred eleven trillion, one hundred twenty billion, eleven million, two hundred one thousand, one hundred eleven".