120000011111 has 8 divisors (see below), whose sum is σ = 127061886384. Its totient is φ = 112938474880.

The previous prime is 120000011029. The next prime is 120000011129. The reversal of 120000011111 is 111110000021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120000011111 is a prime.

It is a super-3 number, since 3×120000011111³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

120000011111 is a modest number, since divided by 11111 gives 12 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120000011171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1203476 + ... + 1299366.

It is an arithmetic number, because the mean of its divisors is an integer number (15882735798).

Almost surely, 2^120000011111 is an apocalyptic number.

120000011111 is a deficient number, since it is larger than the sum of its proper divisors (7061875273).

120000011111 is an equidigital number, since it uses as much as digits as its factorization.

120000011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169521.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 120000011111 its reverse (111110000021), we get a palindrome (231110011132).

The spelling of 120000011111 in words is "one hundred twenty billion, eleven thousand, one hundred eleven".