111100111020111 has 8 divisors (see below), whose sum is σ = 149492504125360. Its totient is φ = 73387229297472.

The previous prime is 111100111020077. The next prime is 111100111020137. The reversal of 111100111020111 is 111020111001111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111100111020111 - 2¹³ = 111100111011919 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 (111100111020911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169877845270 + ... + 169877845923.

It is an arithmetic number, because the mean of its divisors is an integer number (18686563015670).

Almost surely, 2^{111100111020111} is an apocalyptic number.

111100111020111 is a deficient number, since it is larger than the sum of its proper divisors (38392393105249).

111100111020111 is a wasteful number, since it uses less digits than its factorization.

111100111020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339755691305.

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

Adding to 111100111020111 its reverse (111020111001111), we get a palindrome (222120222021222).

The spelling of 111100111020111 in words is "one hundred eleven trillion, one hundred billion, one hundred eleven million, twenty thousand, one hundred eleven".